Question

【题目】The teacher let all the students ________ quiet in the classroom.

A.to keepB.keepingC.keepD.kept

Answer 1

【答案】C

【解析】

句意：老师让所有的学生在教室里保持安静。

考查固定用法。to keep 动词不定式；keeping动名词或现在分词；keep动词原形；kept过去式或过去分词。根据固定用法let sb. do sth. 让某人做某事。可知，此空应填keep，故选C。