The student did what they the old man.A. could helpB. could helpingC. could to helpD. mig

发布时间：2020-08-16 10:23:02

The student did what they      the old man.
A. could help
B. could helping
C. could to help
D. might help

网友回答

A. could help
B. could helping
(答案→)C. could to help
D. might help
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