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Bài 4: a) Hãy phát biểu định lí được diễn tả bởi hình vẽ sau. b) Viết giả thiết và kết luận của định lí đó bằng kí hiêu
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Exercise 1 : Complete the following sentences using the past continuous forms of the verbs in brackets. Question 1 : This time last year I_____(live) in Brazil. Question 2 : What you_____(do) at 10:00 last night? Question 3 : At that time yesterday, I_____(write) a letter. Question 4 : She____ (learn) English at school at 7:45 yesterday morning. Question 5 : - What you_____(do) at this time last night? - I was asleep. Question 6 : Matt burned his hand while he_____(cook) lunch. Question 7 : I saw you in the park yesterday. You_____(sit) on the grass and _____(read) a book. Question 8 : When I came home, my mother_____(prepare) the meal. Question 9 : Jane_____(wait) for me when I arrived. Question 10 : Yesterday evening, while my mother_____(cook) in the kitchen, my father_____(watch) the news on TV. Question 11 : Just as I_____(leave) the house, I heard an explosion from the inside the lab. Question 12 : When Beth arrived, we_____(have) dinner. Question 13 : Why didn’t you listen to me while I (talk)_____with you? Question 14 : Michiko couldn’t come to the phone when the director called her because she_____(work) in the factory. Question 15 : I_____(enjoy) the party, but Chris wanted to go home.

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