Question

【题目】The teacher warned us ________ faces in class.

A. to not make B. make C. making D. not to make

Answer 1

【答案】D

【解析】句意：老师警告我们不要在课上做鬼脸。warn sb not to do sth警告某人不要做某事，故用动词不定式的否定形式not to make，故选D。