大学英语 单选题521.Other possibilities ( ) at the meeting yesterday.A were talked aboutB are talking aboutC is talked aboutD is talking aboutThis is the key ( ) an improvement of their living conditions.A ofB toC forD aboutIt is no use ( ) him

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大学英语 单选题5
21.Other possibilities ( ) at the meeting yesterday.
A were talked about
B are talking about
C is talked about
D is talking about
This is the key ( ) an improvement of their living conditions.
A of
B to
C for
D about
It is no use ( ) him to come now; He is busy.
A ask
B to ask
C asked
D asking
He hurried to the hall,( ) by two guards.
A followed
B following
C be following
D be followed
Many of our dreams ( ) impossible in the past have come true.
A considering
B to consider
C considered
D be considered

21. A
昨天的会议上还讨论了其他的可能性.
yesterday过去时间状语,所以要用过去时,另外被讨论应该用被动语态.
22. B
这是他们改善生活条件的关键.
某些名词后面固定接介词to,如：key/preface/introduction/entrance/access/solution to等
23. D
请他现在来没有用,他很忙.
It is no use doing sth. 做某事没有用 固定句型
24. A
他急忙忙走进大厅,后面跟这两个卫兵.
he是follow的动作的承受者,即他是被跟着的,所以用被动语态,一般过去分词,现在分词做伴随状语,没有D那种形式.
25. C
很多以前以为不可能的梦想已经实现了.
理由参看24.

BABCC

ABDAD

A B D B C
第四题逗号后面的动词用—ING形式

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