The reason she gave for not finishing the homework is that she was ill.A. why B. whatC. t

问题补充：

The reason she gave for not finishing the homework is that she was ill.

A. why

B. what

C. that

D. for

答案：

A. why

B. what

(答案→)C. that

D. for

解析：考查定语从句：句意：她给出的没完成作业的原因是她生病了。先行词是the reason，定语从句中give缺少的是宾语，用that引导定语从句。选C。