John cannot but____his teacher to help him solve the difficult problems.
John cannot but____his teacher to help him solve the difficult problems.
A.to ask B.ask C.asking D.asked 詳解.
A.to ask B.ask C.asking D.asked 詳解.
英語人氣：737 ℃時間：2020-10-01 05:40:17
優(yōu)質(zhì)解答
B.cannot but 不得不,后面接動詞原型
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