Mary, you can’t imagine what great difficulty I’ve had him with the project.A. to helpB.

发布时间：2020-08-16 15:17:26

Mary, you can’t imagine what great difficulty I’ve had      him with the project.

A. to help
B. helping
C. help
D. helped

网友回答

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