1.Một khu vườn trồng cam và bưởi.Số cây cam bằng 2/5 số cây trong vườn.Tìm phân số chỉ số câu bưởi so với số cây trong vườn? 2.Viết số thập phân thích hợp vào chỗ chấm: a)44%=........ b)8%=........... c)96%=........ d)256%=...... 3.Phân số lớn nhất trong các phân số 15/7;11/3;13/7;19/8

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Write the sentences in passive form: Modal verbs. 1. You can’t wash this dress. .................................................................................................................................... 2. You should open the wine about 3 hours before you use it. .................................................................................................................................... 3. Members may keep books for 3 weeks. .................................................................................................................................... 4. Passengers shouldn’t throw away their tickets as inspectors may check them during the journey. .................................................................................................................................... 5. They ought to have reported the accident to the police. .................................................................................................................................... 6. Visitors must leave umbrellas and sticks in the cloakroom. .................................................................................................................................... 7. You should have taken those books back to the library. .................................................................................................................................... 8. We cannot exchange the goods which customers have bought during the sale. .................................................................................................................................... 9. You mustn’t move this man; he’s too ill. .................................................................................................................................... 10. When they have widened this street, the roar of the traffic will keep residents awake all night. ....................................................................................................................................