Question

—Where did you get The Frog written by Mo Yan?

—I picked it up from a bookshop online if you ________ know.

A．must B．will

C．can D．shall

 

Answer 1

A

【解析】A 考察情态动词，句义：如果你非要知道，我是在网店里买到的这本书。Must表示非得，偏要。