present simple continuous past simple continuous and present perfect exercises pdf

Đề tài " Classical and modular approaches to exponential Diophantine equations I. Fibonacci and Lucas perfect powers " pdf

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 ... the perfect powers in the Fibonacci and Lucas sequences naturally reduces to the problem of solving the following pair of equations: F n = y p ,n≥ 0, and p prime,(5) and L n = y p ,n≥ 0, and...

Ngày tải lên: 06/03/2014, 08:21

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Unit 5: Possibility and Probability Perfect Modals pdf

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

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Simple present and present continuous

Simple present and present continuous

... ạ Bình_ B c Ninhắ Present Simple and Present Continuous By Nguyen Trong Long tronglongnguyen@yahoo.co m 09/16/13 Nguyễn Trọng Long_Vạn N inh_ Gia Bình_ Bắc Ninh We use the present simple for things ... 09/16/13 Nguyễn Trọng Long_Vạn N inh_ Gia Bình_ Bắc Ninh The Present Continuous is used to express the actions we are doing in this moment or what is happening ... 09/16/13 Nguy n Tr ng Long_V n Ninh_ Gia ễ ọ ạ Bình_ B c Ninhắ Answer these questions and then practice with a classmate and take his/her notes. Answers ã What do you do in your free time? ___________________ ã ...

Ngày tải lên: 16/09/2013, 07:10

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Tài liệu Present continuous and present simple docx

Tài liệu Present continuous and present simple docx

... Present continuous and present simple Unit 3. Present continuous and present simple (1) A Hãy nghiên cứu các lời giải thích và so sánh các ví dụ sau: Present continuous (I ... việc vất vả thật” “Ừ, mình có nhiều việc phải làm quá.”) Xem thêm UNIT 1. Present Simple (I do) I can’t understand why he’s being so selfish. He isn’t usually like that. Tôi không hiểu ... Sarah rất mệt (không dùng ‘Sarah is being tired’) D Look và feel Bạn có thể dùng thì present simple hay continuous khi diễn tả dáng vẻ hay cảm giác của người nào đó vào thời điểm nói: You...

Ngày tải lên: 22/12/2013, 19:18

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Unit 4. Present continuous and present simple (2) doc

Unit 4. Present continuous and present simple (2) doc

... Động từ be chia ở thì present continuous là I am being/He is being. You are being v.v… I’m being = I’m behaving / I am acting. So sánh các câu sau: I can’t understand why he’s being so selfish. ... Sarah rất mệt (không dùng ‘Sarah is being tired’) D Look và feel Bạn có thể dùng thì present simple hay continuous khi diễn tả dáng vẻ hay cảm giác của người nào đó vào thời điểm nói: You ... có một khoảng thời gian hạnh phúc. B See, hear, smell, taste Ta thường dùng thì present simple (không dùng continuous) với những động từ dưới đây: Do you see that man over there? (not ‘are...

Ngày tải lên: 22/06/2014, 20:20

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Unit 3. Present continuous and present simple (1) doc

Unit 3. Present continuous and present simple (1) doc

... việc vất vả thật” “Ừ, mình có nhiều việc phải làm quá.”) Xem thêm UNIT 1. Present Simple (I do) Hãy dùng thì Present Simple để đề cập tới các sự việc một cách chung chung, hay những sự việc ... to swim when they are children. (Hầu hết mọi người học bơi khi họ còn nhỏ.) Hãy dùng thì Present Simple để diễn đạt một tình huống hay trạng thái có tính ổn định, lâu dài: My parents live...

Ngày tải lên: 22/06/2014, 21:20

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Present simple and Present continuous pot

Present simple and Present continuous pot

... come B. Do/ come C. Is/ coming D. Is/ coming. Present simple and Present continuous ( Hiện tại đơn và hiện tại tiếp diễn) Present simple Present continuous Use + Diễn tả thói quen ở hiện tại. + ... qickly that I ___ (not understand) him. A. speaks/ don’t understand B. is speaking/ don’t understand C. speak/ doesn’t understand D. is speaking/ am not understanding. 10. I’m going for a walk. ... Ving… Adv Always, often, seldom, usually, sometime, everyday/week/month,… At the moment, at the present, now, right now, today… Note 1 số verb chỉ tình trạng không có dạng Ving như: believe,...

Ngày tải lên: 27/06/2014, 04:20

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TChon 15 PRESENT PERFECT AND PAST SIMPLE TENSE.doc

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

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TCHON PERIOD 8 PRESENT SIMPLE, PAST SIMPLE AND PREPOSITIONS OF TIME.doc

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/ ... weekend/ … - AT + time/ weekends/ present/ this time/ the moment/ … - AFTER / BEFORE + time - BETWEEN + time and time B. Exercises: I. Put the verbs in the present simple tense 1. We often (do) ____________ ... 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...

Ngày tải lên: 09/07/2013, 01:26

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Revision ò Present Simple and Present Progressive

Revision ò Present Simple and Present Progressive

... (Non -Continuous Verbs): speakers sometimes use the Simple Present to express the idea that an action is happening or is not happening now. This can only be done with Non -Continuous Verbs and ... that the meaning is like  Simple Present, but with negative emotion. Remember to put the words "always" or "constantly" between "be" and "verb + ing." Examples: ... do. Examples: I play tennis. Facts or Generalizations: the Simple Present can also indicate the speaker believes that a fact was true before, is true now, and will be true in the future. It is not important...

Ngày tải lên: 30/06/2013, 01:27

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