老师用质疑的目光看着学生，等待他的回答。

The teacher gave the student a ___questioning glance, waiting for his response.

当他自称从未迟到过时，她投去了怀疑的目光。

She gave him a ___questioning look when he claimed he had never been late.

警方对目击者进行了长时间的询问。

The police conducted a lengthy ___questioning of the witness.