Teachers suggested parents their children under 12 to ride bicycles to school for safety.A.shouldn’t allowB.don’t allowC.mustn’t allowD.couldn’t allow
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A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,mand,propose,order等,表示“建议”,“命令”,“请求”,“坚持”的单词