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hang1905
2 năm trước
Nguyên tử X có tổng số hạt là 52 và số khối là 35 . Tìm số hạt nơtron, proton, electron của X
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III. Choose the correct answers. 1. I ........................ his car to work while he was sleeping. A. drive B. drove C. driving D. driven 2. The man ........................ the door and ........................ pieces of paper. A. open/ thrown B. opened/ threw C. opened/ thrown D. open/ throw 3. He ........................ them into a room. A. led B. lead C. leaded D. leads 4. He ........................ off his hat and ........................ into the room. A. take/ went B. take/ go C. taken /go D. took/ went 5. The meeting ........................ 5 minutes ago. A. finished B. finish C. did not finish D. did finish 6. When ........................ she ........................ the report? A. do/ finish B. did/ finished C. did/ finish D. didn’t/ finished 7. I ........................ my close friend a cushion for her chair yesterday. A. gave B. give C. gived D. given 8. Hoa’s neighbor ........................ her and then ........................ it very well. A. helped/ fits B. helped/ fit C. help/ fitted D. helped/ fitted 9. I ........................ what teacher ........................ in the last lesson. A. didn’t understand/ said B. didn’t understood/ said C. understand/ say D. understood/ say 10. Yesterday, I ........................ to a souvenir shop near the exit of the aquarium. A. go B. gone C. went D. goes

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