số hs của các khối 6,7,8 của 1 trường thcs tỉ lệ với các số 7,8,6. Biết rằng số hs của khối 8 ít hơn số hs của khối 7 là 80 hs. Tính số hs của khối 6,7,8

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I. Give the correct form of the verbs in brackets (5,0 pts). 1. An island (cover)………………………………………. by water. 2. I (invite) …………………………………………...… to the party last night but I didn’t come. 3. Many accidents (cause)…………………………….…… by reckless driving. 4. He has worked very hard since he ( be)………………………..……here. 5. We won’t go before he (get )…………………………………………back. 6. I haven’t seen him since he (arrive)……………………………………. 7. I (be)…………………………………………… busy since we last met. 8. The news (be)……………………………………..quite alarming yesterday. 9. We (not live)………………………………... in England for two years now. 10. At this time next week, we (live)…………………………………..in USA. II. MAKE QUESTIONS FOR THE UNDERLINED PARTS IN EACH FOLLOWING SENTENCES (5,0 pts) 1. It’s about 8 km from my house to school. =>………………………………………………………………………. 2. Yesterday, I went to Duc Hoang Festival with my friends. =>………………………………………………………………………… 3. Yesterday, I went to Duc Hoang Festival with my friends =>…………………………………………………………… 4. Yesterday, I went to Duc Hoang Festival with myfriends =>…………………………………………………………