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智能题库>大学英语>下篇 第1章 词汇及语法结构 Exercise 1（选择题1~20题）
单选题

1、This robot is supposed to save a lot of labor, but it remains a problem if it ______.

2、Tina _____ have known the truth, or she would have told us.

3、Jack got a good mark although he had done _____ the others.

4、I heard that you really had a wonderful time at John’s birthday party, _____?

5、Under no circumstance _____ to tell lies to parents.

6、I know a place _____ I can get a calculator on sale. I’ll pick one up for you tomorrow.

7、It _____ quite a few years _____ the accused was declared innocent and set free.

8、No matter how frequently _____, the works of Beethoven always attract a large number of people.

9、E-mail as well as telephones ____ more and more popular in daily communication.

10、The operation is _____ success and the patient is now out of _____ danger.

11、Generally speaking, the harder one works, _______.

12、______evidence that language acquiring ability must be stimulated.

13、Many workers were organized to clear away ______remained of the World Trade Center.

14、Some of the middle-aged people _____ to the meeting were famous professors.

15、The house built of stone lasts longer than ____ built of woo

16、I’m sorry I didn’t make it yesterday, but I didn’t break my promise ______.

17、____ impressed the visitors deeply was ____ the workers made with their hands.

18、It always seems that after we give something up, we will gain _____ in its place.

19、—How can I use this washing machine? —Well, just refer to the _______.

20、“_____ your meeting is!” he offered them his sincere congratulations.