----- Nội dung dịch tự động từ ảnh ----- ét ah một định lí cách đo đại ai đường thị (H.3.45). ất quả gắn ng tính chất Cinh li bằng định “ ủng đã biết. và kết luận ai góc đó bài Exercise 1: Give the correct form of the verbs. 1. At this time yesterday we (play) 2. At 7 p.m yesterday he (watch) tennis in the schoolyard. TV. 3. Yesterday while my father (watch) wuuching TV, my mother (read)......... the newspaper, my sister (do)de her homework and I (play) chess with my friend. 4. What were you doing when I phoned you? I (have) 5. She (do) [ her homework at the time yesterday. the flowers at 3 p.m yesterday. the zoo at ten o'clock yesterday. 6. Marry (water) 7. They (visit) 8. Peter and I (do) 9. At 7 p.m last night my father (feed) 10. At this time last year we (learn) [ a bath. the exercise at this time last night. the pigeons. English in London.