The judge scolded the lawyer because he didn’t keep his remarks to the topic discussion.A

问题补充：

The judge scolded the lawyer because he didn’t keep his remarks to the topic discussion.

A. in

B. by

C. within

D. under

答案：

A. in

B. by

C. within

(答案→)D. under

解析：under discussion 在讨论中。