past progressive vs past simple exercises pdf

past continuous or past simple

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 ... Put the verbs in brackets into the past continuous or simple past: 1. Lisa _____________ (comb) her hair while she ____________(listen to) the news...

Ngày tải lên: 31/08/2013, 01:10

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Sustainable Energy Harvesting Technologies Past Present and Future Part 7 pdf

Sustainable Energy Harvesting Technologies Past Present and Future Part 7 pdf

... 100 0 0 0 0 0 0 1 -1 Electrothermal Macromodel of TEG TH TA TC VS Sustainable Energy Harvesting Technologies – Past, Present and Future 112 The most commonly used thermocouples ... 81.4% 120 100 80 -20 40 60 0 20 T [ o C ] Sustainable Energy Harvesting Technologies – Past, Present and Future 116 resistive load R L , the voltage V S forces a Peltier current ... low thermal conductivity λ. 2 Z α ρ λ = (1) Sustainable Energy Harvesting Technologies – Past, Present and Future 124 5.1 Examples of simulations Output voltage V S from the TEG for...

Ngày tải lên: 19/06/2014, 08:20

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Sustainable Energy Harvesting Technologies Past Present and Future Part 9 pdf

Sustainable Energy Harvesting Technologies Past Present and Future Part 9 pdf

... pp.251-259, 2008. 168 Sustainable Energy Harvesting Technologies – Past, Present and Future 14 Sustainable Energy Harvesting Technologies: Past, Present and Future At 400 lux, the maximum power that ... in aqueous 156 Sustainable Energy Harvesting Technologies – Past, Present and Future 12 Sustainable Energy Harvesting Technologies: Past, Present and Future Fig. 13. Voltage across PV panel Fig. ... 2.67 W/m 2 . 162 Sustainable Energy Harvesting Technologies – Past, Present and Future 10 Sustainable Energy Harvesting Technologies: Past, Present and Future 4. Hybrid flexible energy harvesting...

Ngày tải lên: 19/06/2014, 08:20

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Sustainable Energy Harvesting Technologies Past Present and Future Part 14 pdf

Sustainable Energy Harvesting Technologies Past Present and Future Part 14 pdf

... 101-106, Kyoto, Japan, March, 2010 [5] 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). ... Ctmr = 820 pF Vsn, Ctmr = 520 pF Vsn, Ctmr = 820 pF Vout, Ctmr = 520 pF Vout, Ctmr = 820 pF 11.21.41.61.82 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 Fosc (Gate Signal) Vsn (Switching signal) ... applications for both DTV and cellular RF energy harvesting have been proposed and demonstrated with simple examples. A discussion is also presented on the typical performance analysis for the proposed...

Ngày tải lên: 19/06/2014, 08:20

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Tài liệu 44 reading comprehension exercises pdf

Tài liệu 44 reading comprehension exercises pdf

... Internet useful?”, some teenagers answered: • Sandra Morgan: In my opinion, internet is a very past and convenient way for me to get information. I can also communicate with my friends and relatives...

Ngày tải lên: 12/12/2013, 18:15

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Tài liệu Hatching Simple Mountains pdf

Tài liệu Hatching Simple Mountains pdf

... Copyright to all articles, images, text, projects, lessons and exercises within this drawing class belong to Brenda Hoddinott and may not be reproduced or used ... more rounded or more jagged. Copyright to all articles, images, text, projects, lessons and exercises within this drawing class belong to Brenda Hoddinott and may not be reproduced or used ... beginning with the one in the background, and working toward the foreground, making each value progressively darker. This shading process creates a component of perspective known as atmospheric...

Ngày tải lên: 21/01/2014, 08:20

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Tài liệu Acronis True Image VS Symantec Norton Ghost pdf

Tài liệu Acronis True Image VS Symantec Norton Ghost pdf

... Windows Một số tính năng khác của chương trình Xem báo cáo của chương trình Acronis True Image VS Symantec Norton Ghost So sánh Acronis True Image và Symantec Norton Ghost: I/ Tính năng...

Ngày tải lên: 26/01/2014, 04:20

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Tài liệu Past simple (Thì quá khứ đơn) pdf

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 ... 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 ra và đã kết thúc tại một thời điểm xác định trong quá khứ....

Ngày tải lên: 19/01/2014, 17:20

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TCHON Period 7 PAST SIMPLE TENSE.doc

TCHON Period 7 PAST SIMPLE TENSE.doc

... …………………………………………………………………………………………………………………………………………………………… …………………………….…………………………………… 10. decide ……………… ……………… 20. make ……………… ……………… II. Regular and irregular verbs of past simple tense: V1 V2/ V-ed Meanings V1 V2/ V-ed Meanings 1. come 8. demonstrate 2. do 9. watch 3. ... He went home, opened the door and (comes - came- will come) in. VI. Give the correct form of simple past tense: 1. Our guest (arrive) last week. …… …………………………………………… 2. Mr. Green (graduate) from ... - d - IV. Fill in the gaps with a suitable word provided to make the sentences meaningful, use past form: go - be - return - cut - can - have - buy - cook I thought that cooking…………… a useful...

Ngày tải lên: 14/06/2013, 01:26

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