20. Keep on ________ and you will succeed. A. to try B. try C. trying D. tried ...

15. My cousin ________ in British literature and will graduate from a normal university this summer. A. studies B. majors C. learns D. devotes ...

10. The students _________ a good rest last weekend. They were preparing for the test. A. don't have B. didn't have C. hadn't D. won't have ...

5. Every one of them ________ tired and wanted a good rest. A. seems B. is seemed C. was seemed D. seemed ...

10. I have got my driving license, that is to say, I am licensed to drive now. A. 错误 B. 正确 ...

5. As the New York experience shows, recycling involved more than simply separating valuable materials from the rest of the rubbish. A. 错误 B. 正确 ...

15. It's necessary that he ________ a recognized qualification. A. has B. have C. had D. having ...

9. Jane’s dress is similar in design __________ her sister’s. A. like B. with C. to D. as ...

3. You ________ the clothes! We have a washerwoman to do that sort of thing. A. shouldn't have washed B. mustn't have washed C. cannot have washed D. needn't have washed ...

7. You can't depend on her; for instance, she arrived late yesterday. A. 错误 B. 正确 ...