—The hall for international conferences is of great importance.—I see, and we are sure to

—The hall for international conferences is of great importance.
—I see, and we are sure to complete it on time.
A. built
B. to be built
C. having been built
D. building

A. built(答案→)B. to be builtC. having been builtD. building解析：句子主干为：The hall is of great importance。be of great importance ＝ be very important，主语the hall 后为非谓语动词短语作后置定语。因the hall 与动词build 之间为被动关系，首先排除 B，从答句中的．..we are sure to complete it on time 可知该大厅还没有完工，因此排除表示“被动完成”的A、C 两项，而选表示“未来将完成”的不定式的被动式。考点:考查不定式的被动做定语点评;非谓语作定语含义不一样：done做定语，表示被动和完成； being done做定语，表示被动和进行； to be done做定语，表示被动和将来。

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