past simple continuous and past perfect exercises pdf
TChon 15 PRESENT PERFECT AND PAST SIMPLE TENSE.doc
... recently, don’t you think? 6 My grandfather died 30 years ago. I (never/meet) him. 4. Fill in the blanks with modals: must - have to - ought to - used to 1. You wash your hands before meals. 2. It’s ... seventeen. In the play, she must appear in a bright red dress and long black stockings. Last year in another play, she had to wear short socks and a bright, orange-colored dress. If anyone asks her ... the party? 7. There are many clouds in the sky. It (rain) ….…… …………………………… 6. Read the passage and answer the following questions: My aunt Nhan is an actress. She must be at least thirty-five....
Ngày tải lên: 08/07/2013, 01:27
past continuous or past simple
... same time in the past. Eg. Mark was reading a book and Tony was watching television. BE CAREFUL!!!! The past continuous and the past simple are often used together. The past simple interrupts ... action of the past continuous. Eg. I was watching television when my friend arrived. BE CAREFUL!!!! The past continuous and the past simple are often used together. The past simple interrupts ... at the same time in the past. Eg. Mark was reading a book and Tony was watching television. We use the past continuous to talk about an action that started in the past but not finished at...
Ngày tải lên: 31/08/2013, 01:10
Đề tài " Classical and modular approaches to exponential Diophantine equations I. Fibonacci and Lucas perfect powers " pdf
... and (ii) are treated in Sections 5 and 6, respectively. Sections 7 and 8 are devoted to step (iii). Sections 9 and 10 are concerned with Steps (iv) and (v). Section 11 deals with steps (vi) and ... Classical and modular approaches to exponential Diophantine equations I. Fibonacci and Lucas perfect powers By Yann Bugeaud, Maurice Mignotte, and Samir Siksek* CLASSICAL AND MODULAR ... real case: 1 , 2 and 3 are real numbers > 1, and the logarithms of the α i ’s are real (and > 0), ã the complex case: 1 , 2 and 3 are complex numbers of modulus one, and the logarithms...
Ngày tải lên: 06/03/2014, 08:21
Unit 5: Possibility and Probability Perfect Modals pdf
... has a lot of exams coming up soon, and he is also working on a term paper. He must have been studying at the library. Unit 5: Possibility and Probability Perfect Modals I. Possibility: May, ... room are turned off. She must be sleeping. (right now). Past time: MODAL + have been + v-ing Meaning: in progress at a time in the past. ã Ex 1 : Sue wasn’t at home last night when we went ... In negative sentences both must not and don’t have to (also don’t need to and need not) are used. Must not is used when the speaker expects or orders...
Ngày tải lên: 07/03/2014, 07:20
Hiện tại Hoàn thành và Quá khứ Present Perfect vs Past Simple pdf
Ngày tải lên: 08/08/2014, 13:22
TCHON PERIOD 8 PRESENT SIMPLE, PAST SIMPLE AND PREPOSITIONS OF TIME.doc
... TOPIC 2: OUR PAST PERIOD 8: PRESENT SIMPLE, PAST SIMPLE AND PREPOSITIONS OF TIME A. Theory: 1. Present simple and past simple: Tenses Affirmation Negation Interrogation Present simple S + am/ ... morning, Tuan and his father go jogging around Xuan Huong Lake. Hoa and her mother walked along Bui Thi Xuan Street and then visited the flower garden. Hoa liked it very much and the flowers ... ……………………………………………………………………………………………… ……………………………………………………………………………………………… ………………………….…………… V. Read the passage and answer question below: In the summer holidays, Mr. Hung, Mrs. Chi and their children, Tuan and Hoa often go to the beach for two or three...
Ngày tải lên: 09/07/2013, 01:26
EXESRCISES ON PAST SIMPLE OR PRESENT PERFECT
... 10. B: I (be / not) to Australia yet. Simple Past or Present Perfect Simple Exercise 3 Put the verbs into the correct tense (simple past or present perfect simple) . 1. A: (you / be / ever) to London? ... (can / concentrate / not) on the film. Simple Past or Present Perfect Simple Exercise 8 Put the verbs into the correct tense (simple past or present perfect simple) . 1. I (just / finish) my homework. ... Sentences in Present Perfect Simple 1. Bob / visit / his grandma 2. Jimmy / play / on the computer 1 Questions Put the verbs into the correct tense (simple past or present perfect simple) . 1. (you...
Ngày tải lên: 15/09/2013, 00:10
Tài liệu Past simple & Past continuous doc
... you too tired? Past simple & Past continuous Unit 5. Past simple A Xem xét ví dụ sau: Wolfgang Amadeus Mozart was an Austrian musician and composer. He lived from 1756 ... to her but she wasn’t looking. C So sánh thì past continuous - quá khứ tiếp diễn (I was doing) và past simple - quá khứ đơn (I did): Past continuous (đang ở giữa hành động) I was walking ... enjoyed Did you enjoy? I didn’t enjoy Past continuous A Hãy xem ví dụ sau: Yesterday Karen and Jim played tennis. They began at 10 o’clock and finished at 11.30. So, at 10.30 they were...
Ngày tải lên: 22/12/2013, 19:18
Tài liệu Past simple (Thì quá khứ đơn) pdf
... Past simple (Thì quá khứ đơn) Simple Past là thì quá khứ đơn. Để viết câu ở thì Simple Past ta chia động từ ở dạng past của nó. Hầu hết các động từ khi ... hold :held to meet :met to stand :stood to mean :meant to read /rid/ :read /red/ to sit :sat to take :took to think :thought * Chúng ta dùng thì Simple Past để chỉ một sự việc đã xảy ... herself It itself Số nhiều We ourselves You yourselves They themselves Ví dụ: Tom is shaving and he cuts himself. (không phải he cuts him) (Tom đang cạo râu và anh ta cắt phải mình). The...
Ngày tải lên: 19/01/2014, 17:20
Tài liệu Present perfect and past doc
... been”) Vậy thì ai làm nhỉ. Present perfect and past (2) Unit 14. Present perfect and past (2) A Chúng ta không dùng thì present perfect (I have done) khi nói về một thời điểm ... khứ ( present perfect và past simple) qua các câu sau: Present perfect (have done) I’ve done a lot of work today. Hôm nay tôi đã làm nhiều việc. Chúng ta dùng thì present perfect khi đề ... “have you done”). Bạn đã bị như thế nào? Past simple (did) I did a lot of work yesterday. Hôm qua tôi đã làm nhiều việc. Chúng ta dùng thì simple past khi đề cập tới một thời điểm đã kết thúc...
Ngày tải lên: 19/01/2014, 17:20
Tài liệu Present perfect continuous & Present perfect continuous and simple pptx
... waiting. We’ve been waiting for an hour. Present perfect continuous and simple Unit 10. Present perfect continuous and simple A Nghiên cứu ví dụ sau: Ann’s clothes are covered in ... quấy rầy tôi bây giờ. Tôi đang làm việc. Present perfect continuous & Present perfect continuous and simple Unit 9. Present perfect continuous A It has been raining. Xem ví dụ sau: ... problem and she thinks that … Mình vừa mới đề cập đến vấn đề của Carol và cô ấy nghĩ là … B It has been raining for two hours. Xét ví dụ sau: It is raining now. It began raining two hours ago and...
Ngày tải lên: 19/01/2014, 17:20
Sustainable Energy Harvesting Technologies Past Present and Future Part 7 pdf
... load and constant temperature gradient ∆T. 4 Modeling and Simulation of Thermoelectric Energy Harvesting Processes Piotr Dziurdzia AGH University of Science and Technology in Cracow Poland ... Peltier effect Q c1 and Q h1 , Joule heat Q c2 and Q h2 , heat conduction Q c3 and Q h3 . In case of the Joule heat it is assumed that one half of it dissipates at the cold side and the other half ... Sustainable Energy Harvesting Technologies – Past, Present and Future 116 resistive load R L , the voltage V S forces a Peltier current I flow, and in consequence there appears a Joule heat...
Ngày tải lên: 19/06/2014, 08:20
Sustainable Energy Harvesting Technologies Past Present and Future Part 9 pdf
... Circuits and Systems, vol.2, no.4, pp.251-259, 2008. 168 Sustainable Energy Harvesting Technologies – Past, Present and Future 14 Sustainable Energy Harvesting Technologies: Past, Present and Future At ... Energy Harvesting Technologies – Past, Present and Future 10 Sustainable Energy Harvesting Technologies: Past, Present and Future 4. Hybrid flexible energy harvesting and energy storage The proposed ... Technologies – Past, Present and Future Wearable Energy Harvesting System for Powering Wireless Devices 5 Barbic et al. (1999), rated voltage at about 1.5 V and capacity of ≈ 30 mAh) in prototype and to...
Ngày tải lên: 19/06/2014, 08:20
Sustainable Energy Harvesting Technologies Past Present and Future Part 14 pdf
... http://www.secomtel.com/UpFilesPDF /PDF/ Agilent /PDF_ DOCS/SKYDIODE/ 03_ SKYDI/HSMS2850 .PDF (Last accessed on 13 July, 2011) [6] McSpadden, J. et al., H. (1992). Theoretical and Experimental Investigation ... temperature sensor with WLAN at 2.4 GHz (ISM band). An ISM band sleeve antenna is used for the transmission. Using the cellular band rectenna shown and discussed in Section 2.5.1, at least 3.14 ... Harvesting Technologies – Past, Present and Future 254 The transmitter consists of one-chip microcomputer (MCU) PIC16F877A and wireless module nRF24L01P for the control, and MCU can be connected...
Ngày tải lên: 19/06/2014, 08:20
