Kathy___ spend time on his parents.参考答案是A,为什么?D为什么不可以呢?A.doesn't need to B.needn't to C.doesn't needD.needs

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Kathy___spendtimeonhisparents.参考答案是A,为什么?D为什么不可以呢?A.doesn''tneedtoB.needn''ttoC.doesn''tneedD.needsKath

Kathy___ spend time on his parents.参考答案是A,为什么?D为什么不可以呢?A.doesn't need to B.needn't to C.doesn't needD.needs
Kathy___ spend time on his parents.参考答案是A,为什么?D为什么不可以呢?
A.doesn't need to
B.needn't to
C.doesn't need
D.needs

Kathy___ spend time on his parents.参考答案是A,为什么?D为什么不可以呢?A.doesn't need to B.needn't to C.doesn't needD.needs
need to do 不定式,固定用法,必须有to

need和spent都是动词 中间要用to连接。
而且need to do sth 是固定搭配。