Cho tứ giác ABCD có ∠BAD+∠BCD=180°. AC cắt BD tại I. Gọi M và N lần lượt là trung điểm của AB và CD. Chứng minh rằng ∠AIM=∠DIN

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Exercise 1: Put "was“ or "were” in the gap. 1.The teacher …………………… nice. 2. The students ……………………. very clever. 3. But one student ……………….. in trouble. 4. We ……………….. sorry for him. 5. He ………………. nice though. 6. I ……………….. happy. 7. You ……………….. angry. 8. She ………………… in London. 9. He ………………… on holiday. 10. It …………………. cold. 11. We …………………. at school. 12. You …………………… at the cinema. 13.They ………………… at home. 14. The cat ………….. on the roof. 15. The children ……………….. in the garden Exericse 3: Change these sentences into negative and interrogative form. 1. She was tired last night. => ……………………………………………………………………………………………… ……………………………………………………………………………………………… 2. I was in London last month.=> ……………………………………………………………………………………………… ……………………………………………………………………………………………… 3. They were at Nina’s house some days ago.=> ……………………………………………………………………………………………… …………………………………………………………………………………………… 4. My parents were at the party yesterday. => ……………………………………………………………………………………………… ……………………………………………………………………………………………… 5. Tom was at school last Monday.=> ……………………………………………………………………………………………… ……………………………………………………………………………………………… Exercise 4: Supply the correct past simple tense of verbs in brackets. (Affirmative form) 1. I _________ ( stay) at home all weekend. 2. Angela __________ (go) to the cinema last night. 3. My friends __________(have)a great time in Nha Trang last year. 4. My vacation in Hue _____________ (be) wonderful. 5. Last summer I ______________(visit) Ngoc Son Temple in Ha Noi. 6. My parents _______________( be) very tired after the trip. 7. I _______________(buy) a lot of gifts for my little sister. 8. Lan and Mai _____________ (see) sharks, dolphins and turtles at Tri Nguyen aquarium. 9. Trung ________________ (eat) chicken and rice for dinner. 10. They _______________ (talk) about their holiday in Hoi An. Exercise 5: Supply the correct past simple tense of verbs in brackets. (Negative form) 1. I _________________ (not / drink) any beer last night. 2. She _________________ (not/ get on) the bus in the centre of the city. 3. I _________________ (not / change) trains at Victoria. 4. We _________________ (not/ wake up) very late. 5. I _________________ (not/ receive) £300 when my uncle died 6. We _________________ (not / use) the computer last night. 7. He _________________ (not/ have) a shower. 8. They _________________ (not/ live) in Paris. 9. She _________________ (not/ read) the newspaper yesterday. 10. I _________________ (not / watch) TV.

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