--IheardabagofLaTiao

问题详情：

--I heard a bag of La Tiao ________ at the price of ￥10 in America. But I am not        sure.

         -- I can’t believe it. Let’s check it online.

A. must sell     B. might be sold    C. must be sold    D. can’t be sold

【回答】

B

知识点：情态动词

题型：选择题