—Howisthesmogcontrolgoingoninourcapitalcity?—Itcouldn’...

問題詳情：

 — 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

知識點：情態動詞

題型：選擇題