John cannot but----his teacher to help him solve the difficu

学习 时间:2026-09-26 06:06:04 阅读:4397
John cannot but____his teacher to help him solve the difficult problems.A.to ask B.ask C.asking D.asked 详解.

最佳回答

激动的发卡

怕孤独的流沙

2026-09-26 06:06:04

B。 cannot but 不得不,后面接动词原型