Question

—  Must I return the book this week?
— No, you ____. You can _    it for 20 days.

A．mustn't: keep

B．needn't; borrow

C．needn't; keep

D．mustn't; borrow

Answer 1

C

must回答與延續(xù)性動(dòng)詞的用法。Must開頭的一般疑問(wèn)句的否定回答用“……needn’t”, 由答語(yǔ)for短語(yǔ)指一段時(shí)間，故用延續(xù)性動(dòng)詞，borrow為短暫性動(dòng)詞，要換成延續(xù)性動(dòng)詞keep。