No one has yet succeeded in explaining the ________ of how life began.
发布时间:2021-08-06
A.reason
B.puzzle
C.problem
D.cause
试卷相关题目
- 1When you go out for a picnic, you must ________ snakes in the bushes.
A.be careful
B.look out
C.watch out for
D.take care of
开始考试点击查看答案 - 2She told me that she ________ by swimming and playing tennis.
A.remained health
B.kept fit
C.in good health
D.was in good health
开始考试点击查看答案 - 3At last, the student realized that he must ________ some study.
A.begin to
B.go to
C.get down to
D.sit down to
开始考试点击查看答案 - 4I trusted him but he _____.
A.put me down
B.dropped me down
C.drove me down
D.let me down
开始考试点击查看答案 - 5After Mrs Zhang came in, she asked the monitor to ________ the papers around the class.
A.give in
B.give out
C.give up
D.give away
开始考试点击查看答案 - 6At first, everyone listened attentively, but ______ some people became restless and a couple of them began to leave.
A.in the end
B.by the end
C.at the end
D.towards the end
开始考试点击查看答案 - 7I ________ his gift, but I didn't ________ it.
A.accept; receive
B.receive; accept
C.receive; receive
D.accept; accept
开始考试点击查看答案 - 8Knock at the door ________ and perhaps you will get an answer.
A.once
B.once more
C.at once more
D.more once
开始考试点击查看答案 - 9Work hard and you will succeed ________.
A.in time
B.on time
C.in no time
D.at no time
开始考试点击查看答案 - 10Something that is_______ can be moved easily from place to place.
A.mobile
B.moving
C.alive
D.lively
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