Teachers suggested parents their children under 12 to ride bicycles to school for safety.A

问题补充：

Teachers suggested parents their children under 12 to ride bicycles to school for safety.

A. shouldn’t allow

B. don’t allow

C. mustn’t allow

D. couldn’t allow

答案：

(答案→)A. shouldn’t allow

B. don’t allow

C. mustn’t allow

D. couldn’t allow

解析：

这里考查虚拟语气的用法，suggest表示建议时，宾语从句中用虚拟语气（should）+do 类似的还有insist,require，order，command，propose，order等，表示“建议”，“命令”，“请求”，“坚持”的单词