The boss suggested to Jessica strongly that she should have a good time but didn’t help.A

问题补充：

The boss suggested to Jessica strongly that she should have a good time, but didn’t help.

A. which

B. she

C. she

D. it

答案：

A. which

B. she

C. she

(答案→)D. it

解析：由连词but可知，后面的应该是个句子，用it代指前面的分句所表述的内容，若去掉but则是一个由which 引导的非限制定语从句。