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xuananh43201
2 năm trước
1.Tính hóa tri của các nguyên tố kim loại và phi kim trong các công thức sau: CuO, Al2O3, Cu(OH)2, NaCl, Fe2O3, SO2, SO3,CO2
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1. He was feeling bad. He went to work, _______ , and tried to concentrate A however B but C so D therefore 2 I have read Soul on Ice, ______ I have not read The Invisible Man A but B and C so D therefore 3. The plane is flying _____ A east B eastward C eastern D the East 4. Jane dislikes television, but her husband watches it every night A Jane enjoys watching television, but her husband does not. B Jane gets angry whenever her husband watches television at night. C Jane watches television with her husband every night. D Jane’s husband watches television nightly, but she dislikes it. 5. What John says........true but I very much doubt it A may be B will be C shall be D should be 6. If you keep trying, you might........to do it A succeed B discover C understand D manage 7. The by-laws say that all dogs........be kept on a lead in the park A ought B need C must D have 8. May I suggest Monday for our trip to Bristol? A I think we must go to Bristol on Monday. B I think we would be allowed to go to Bristol on Monday. C I think Monday is the only day we can manage for the trip. D I think Monday would be a good day for us to go to Bristol. 9 Tell her that she ________ be here by six. I insist on it. A may B must C ought to D might 10 Alan and Susie........an argument. They're not speaking to each other A must have B might have C must have had D may have Giúp mình với

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