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batintinba2001
2 năm trước
Cầu 3: Một em học sinh đứng ở mặt đát cách tháp ăng ten 150m. Biết rằng em nhìn thấy đinh tháp ở góc 20° so với đường năm ngang, khoảng cách từ mắt đến mặt đất bằng 1.5m. Hãy tính chiều cao của tháp? gấp lắm á, giúp mik vs
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Exercise 40: Complete the sentences by putting the verbs into the past simple or past progressive 1. The doorbell (ring)_____ while Tom (watch)_____ TV last night. 2. How fast_____ you (drive)_____ when the accident (happen)_____? 3. Anna (make)_____ dinner when Martin (arrive)_____ home last Sunday. 4. The light (go)_____ out while we (have)_____ dinner yesterday, but it (come)_____ on again after ten minutes. 5. What_____ you (do)_____at this time yesterday? - I (work)_____ on the computer. 6. It suddenly (begin)_____ to rain while Laura (sit)_____ in the garden. 7. Sam (take)_____ a photograph of me while I (not look)_____. 8. When I (see)_____ them, they (try)_____ to find a new house near their work. 9. I (walk)_____ along the street when I suddenly (feel)_____ something hit me in the back. I (not know)_____ what it (be)_____. 10. Last night I (drop)_____ a plate when I (do)_____ the washing up. Fortunately it (not break)_____. Exercise 41: Complete the sentences by putting the verbs into the past simple or past progressive. 1. He (break)_____ his arm when he (play)_____ football. 2. Julia (write)_____ her first novel when she (be)_____ 19 years old. 3. I (work)_____ on the computer when the fire (break)_____ out. 4. When it (start)_____ to rain, they (walk)_____ through the forest. 5. He (tell)_____ us about his marriage when we (have)_____ tea. 6. Sorry, I (not listen)_____ to you, I (drink)_____ about something else.

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