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1. All of the plants now farmed on a large scale were developed from plants ____wild.
A. that once grow B. once they grow C. they once grew D. once grew
2. By the time you graduate, we____in Australia for one year.
A. will be staying B. will have stayed C. would have stayed D. have stayed
3. He appreciated____the chance to deliver his thesis in the annual symposium on Comparative Literature.
A. having given B. to have been given C. to have given D. having been given
4. The government official can hardly find sufficient grounds ____his arguments in favor of the revision of the tax law.
A. on which to base B. which to be based on C. to base on which D. on which to be based
5. Living in the desert involves a lot of problems, ____ water shortage is the worst. A. not to mention B. of which C. let alone D. for what
6. Hydrogen is one of the most important element in the universe ____it provides the building blocks from which the other elements are produced.
A.so that B. but that C. provided that D. in that
7. Just as relaxation is an important part of our lives,____stress.
A.so is B. as it is C. and so is D. the same is
8. Victor took a bus and headed for home, ____if his wife would have him back.
A. not to know B. not known C. not knowing D. not having known
9. We can make an exception ____.
A. in any case of John B. in case of John C. in case of John’s D. in the case of John
10. When the Cultural Revolution was launched in China, his father ___ college.
A. attended B. had been attending C. was attending D. has been attending
[答案]
1-5：ABDAB
6-10：DACDC
