2. 外语
  3. Where this plan ______ is on the small amount of time it allows for possible delays.

Where this plan ______ is on the small amount of time it allows for possible delays.

admin2012-10-30  54
问题 Where this plan ______ is on the small amount of time it allows for possible delays.
选项 A、falls off
B、falls behind
C、falls back
D、falls down
答案D
解析 fall down(on sth．)是口语用法，指“(在……方面)失败，未做到”，符合句意；fall off指“消减，减少”，后面不接宾语；fall behind一般和介词with连用，指“落于……之后，落后”；fall back on意为“求助于，依靠”。
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大学英语四级

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