—Canchildrenundertheageoftenridebicyclesinyourcity?—No,...

問題詳情：

— Can children under the age often ride bicycles in your city?

— No, according to the law, they ____.

A. may not     B. needn’t           C. mustn’t      D. shouldn’t

【回答】

C

知識點：情態動詞

題型：選擇題