问题标题:
Ifthedoctorhadcomeearlier,thepoorchildwouldnot____.A.havelaidtherefortwohours.B.havebeenliedtherefortwohours.C.havelaedtherefortwohours.D.havelaintherefortwohours.
问题描述:

Ifthedoctorhadcomeearlier,thepoorchildwouldnot____.

A.havelaidtherefortwohours.

B.havebeenliedtherefortwohours.

C.havelaedtherefortwohours.

D.havelaintherefortwohours.

李晓波回答:
  A.have+laid(lay的过去分词)构成现在完成时态.
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