16. All things, whether you know or don' t know, exist in the world. A. 错误 B. 正确 ...
2. . The house built of brick lasts longer than those built of wood. A. 错误 B. 正确 ...
7. If I ________ in university, I ________ the present job. A. didn’t study, would get B. hadn’t studied, would get C. didn’t study, didn’t get D. hadn’t studied, wouldn’t get ...
18. Seeing from a distance, it looked like a human face. A. 错误 B. 正确 ...
8. It was necessary that we (should) make everything ready ahead of time. A. 错误 B. 正确 ...
3. I will not give her the gift unless she passes the test tomorrow. A. 错误 B. 正确 ...
15. If people _____ water and oil, oil ______ on the water. A. mixed, would float B. mix, would float C. mix, floats D. will mix, will float ...
4. With all the work on hand, he____ to the cinema last night. A. mustn't go B. shouldn't have gone C. could not go D. couldn't have gone ...
19. If you are riding a bike in the street, you must be very careful. A. 错误 B. 正确 ...
14. Mary was sitting near the fire, her back towards the door. A. 错误 B. 正确 ...