Question

---  ________ have you kept the book ?
--- Since last Month. I ________ return it to the library today or I can’t borrow one next time.

A．How often; must

B．How long; have to

C．How soon; have to

D．When; must

Answer 1

B

试题分析：句意：你借这本书多久啦？自从上个月。今天我得还给图书馆，否则我下次不能借。根据答语Since last Month可知该用How long提问，所以选B。