When Li Ming hurried home,he found that his mother___ already ___toWhen Li Ming hurried home,he found that his mother___ already ___to hospital.A.has;been sentB.had;sentC.has;sentD.had;been sent--------------------------------------------------------

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When Li Ming hurried home,he found that his mother___ already ___toWhen Li Ming hurried home,he found that his mother___ already ___to hospital.A.has;been sentB.had;sentC.has;sentD.had;been sent--------------------------------------------------------

When Li Ming hurried home,he found that his mother___ already ___toWhen Li Ming hurried home,he found that his mother___ already ___to hospital.A.has;been sentB.had;sentC.has;sentD.had;been sent--------------------------------------------------------
When Li Ming hurried home,he found that his mother___ already ___to
When Li Ming hurried home,he found that his mother___ already ___to hospital.
A.has;been sent
B.had;sent
C.has;sent
D.had;been sent
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When Li Ming hurried home,he found that his mother___ already ___toWhen Li Ming hurried home,he found that his mother___ already ___to hospital.A.has;been sentB.had;sentC.has;sentD.had;been sent--------------------------------------------------------
D 该整主句为过去式he found that 后宾语从句的动作发生在主句动作之前,应用过去的过去,所以使用过去完成时由于动词send与主语mother是动宾关系,所以用被动语态故D为正确答案

D。
首先是过去的过去,为过去完成时,因为姐姐被送去医院是在Li Ming hurried home之前。
其次,姐姐是送去医院,是被动语态,be done。

A

A 现在完成时、送进医院是被动语态

选D
原因:在李明赶回家的时候呢,她的妈妈就已经被送到医院去了,他妈妈被送到医院是在他回来之前就发生的,所以要用had,另外,他妈妈应该是被送到医院的,是被动,要加been才行

选D。
首先从句意来分析是过去的过去,因为妈妈被送去医院是在Li Ming hurried home之前。所以用过去完成时,
其次,妈妈是被别人送去医院的,所以用被动语态,be done。

D

选 D. 主从句时态。被动语态。完成时态

D
理由:很明显,这是过去完成时,所以用had
他的妈妈被送去医院,用被动语态been sent

选D
首先,我们可以排除A、C项
这个句子前面用的都是一般过去时,而李明回到家时是已经发现了妈妈被送到了医院,时态上是过去的过去,所以,应该是过去完成时。
接着,我们可以看到D是被动,所以显然比B更为正确。