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thaonhi0604
2 năm trước
Chỉ ra các nhóm phân số có giá trị bằng nhau trong các phân số sau : a) 11/22 ; 17/-34 ; -15/-30 ; -20/30 ; -19/38 ; 18 /-27 b)2/-8 ; 25/35 ; 20/16 ; -11/44; -15/-21 ; -50/-40
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BÀI TẬP CHIA ĐT THÌ HIỆN TẠI HOÀN THÀNH VÀ QUÁ KHỨ ĐƠN TRÊN SHUB I. Put the verbs in brackets in the correct verb tense: the Present Perfect or Past Simple. 1. They (not see) the film Titanic yet. 2. Tom (call) his boss yesterday. 3. John (read) the letter from Mary already. 4. We (not begin) to learn for the test yet. 5. I (meet) Robert at the supermarket this morning. 6. Nancy (be) to Viet Nam several times. 7. I (not see) your brother yet. 8. When (your father/ give up) smoking? 9. My pen isn’t here any more. Someone (take) it already. 10. The motorbike looks clean, (you/ wash) it? II. Put the verbs in brackets in the correct verb tense: the Present Perfect or Past Simple, 1. My uncle (move) to Da Lat in 2005. 2. The Greens (be) to many countries in the world so far. 3. We (go) to that village to do volunteer work several times. 4. We (spend) our summer vacation in Ha Long Bay last July. 5. Our teacher (explain) to US how to use the printer already. 6. The postman (deliver) the letter half an hour ago. 7. Mai (not finish) her homework yet. 8. I (visit) our form teacher in the hospital already. 9. I (hear) the good news from Mary a few minutes ago. 10. They (not start) the project yet

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