Question

12. ―Why don't you wear your jogging shorts, Mum?

―Well, my legs are too skinny* if you know.

A. should       B. can

C. need        D. must

Answer 1

12.   D考査情态动词。句意："妈妈，你为什么不穿你的慢跑短裤？""嗯，如果你非要知道的话，（那是因为）我的腿太瘦了。" must非要，一定要。