Question

【题目】— ________ 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

【答案】B
【解析】句意：……你有这本书？-从上个月。我今天……归还到图书馆否则下次我不能借书了。根据句意可知是问借这本书多久，而我今天不得不还书，故选B。