—Howisthesmogcontrolgoingoninourcapitalcity?—Itcouldn’...

问题详情：

 — How is the smog control going on in our capital city?

— It couldn’t be worse. You ________ believe Beijing upgraded the smog alert from yellow to orange and then red again yesterday.

A. won’t  B. mustn’t  C. needn’t  D. shouldn’t

【回答】

A

知识点：情态动词

题型：选择题