PETS语法辅导:情态动词

—— Could I have the television on? —— Yes, you can. / No, you can’t. 2)在否定,疑问句中表示推测或怀疑。 He couldn’t be a bad man. 他不大可能是坏人。 比较may和might 1) 表示允许或请求;表示没有把握的推测;may 放在句首,表示祝愿。

C. supposing to have been written D. supposing to be written 4. The money with which you were to buy dog food is gone, but Spot looks so hungry! 让你们用来买狗食的钱已经花光了,可是斑点看上去还是这么饿! “be + 不定式”结构 (1) 表示“将来的安排,将来...

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