40. Mr Wang does what he can ________ us improve our English. A. help B. to help C. helping D. helpe

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40. Mr Wang does what he can ________ us improve our English. A. help B. to help C. helping D. helpe

B to help,
因为does what he can 是:做他能做的
目的是 to help us

A

B 相信我,我们考试考过