21春学期《大学英语(四)》在线平时作业1
19. ______ a bad habit is formed, it will not be easy to get rid of it.
A:Since B:Because C:While D:Once 答案：D
23. ______ at the airport, Mrs. Robertson felt a great burden taken off her shoulders.
A:Seen her two sisters-in-law off
B:Having seen her two sisters-in law off C:With her two sisters-in-law seen off D:By seeing her two sisters-in-law off 答案：B
72. The worker's demands are ______; they're asking for only a small increase in their wages.
A:excessive
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B:raw C:super D:moderate 答案：D
16. Frank gambled his money away ______ Jane spent hers all on dresses.
A:for B:so C:while D:so that 答案：C
65. On arriving at Singapore, we telephoned to ______ our mother’s uneasiness.
A:cut B:relieve C:subtract D:decrease 答案：B
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80. I doubt whether he can _______ his efforts much longer as he looks very tired.
A:hold up B:hold on C:keep on D:keep up 答案：D
40. I have not found my book yet; in fact, I am not sure ______ I could have done with it.
A:whether B:where C:when D:what 答案：D
68. He only ______ the letter I handed to him but signed it anyway.
A:studies B:scanned C:saw
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东北大学21春学期《大学英语(四)》在线平时作业1
