题目列表(包括答案和解析)
22. Some researchers believe that there is no doubt ______a cure for AIDS will be found.
A. which B. whether C. that D. what
21. He was about to tell me the secret ______ someone patted him on the shoulder.
A. as B. while C. when D. until
20. ______ you’re tried it, you can’t imagine how pleasant it is.
A. When B. Although C. Because D. Unless
19. For miles around me there was nothing but a desert, without a single plant or tree ______.
A. on earth B. in sight C. at a distance D. in place
18. More and more people choose to shop in a supermarket as it offers a great ____ of goods.
A. expression B. mixture C. variety D. combination
17. So difficult ______ it to live in an English-speaking country that I determined to learn English.
A. did I feel B. I have felt C. have I felt D. I did feel
16. For a moment nothing happened. Then ______all shouting together.
A. voices had came B. did voices come C. came voices D. voices would come
15. -How long are you staying?
-I don’t know. ______.
A. That’s ok B. It depends C. Never mind D. It doesn’t matter
14. Whatever work you are doing, you should concentrate your attention ______it.
A. to B. towards C. with D. on
13. The incomes of skilled workers went up. _____, unskilled workers saw their earnings fall.
A. Moreover B. Therefore C. Meanwhile D. Otherwise
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