He did all he could .A. help me outB. to help out meC. help me out ofD. to help me out

发布时间：2020-08-14 23:47:15

He did all he could      . 
A. help me out
B. to help out me
C. help me out of
D. to help me out

网友回答

A. help me out
B. to help out me
C. help me out of
(答案→)D. to help me out
解析：在could之后省略了do,同时在all之后也省略了关系代词that.
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