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She doesn't want to fall behind others.She's_to catch up wit

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She doesn't want to fall behind others.She's_to catch up with her classmates.
A decide
B make a decision
C decision
D made a decision
为什么不能是B?
She doesn't want to fall behind others.She's_to catch up wit
因为 's == has.所以,has的後面要加过去分词made,不能用make这个原形.所以D是对的.
再问: 可是他前面不是现在完成时 为什么后面就是has?
再答: doesn't want to -----这个通常没有“完成时”,has made a decision ------强调到目前“已经决定”。 want是状态动词,一般不用完成时,make a decision是表示“动作”的动词短语,强调到目前为止“已经”,就用“现在完成时”。