I was about to give up the project it hit me I could work with my roommates. That’s to sa

问题补充：

I was about to give up the project it hit me I could work with my roommates. That’s to say, I can turn to them for help.

A. that; whether

B. that; when

C. when; how

D. when; that

答案：

A. that; whether

B. that; when

C. when; how

(答案→)D. when; that

解析：考查固定句型和形式主语句。第一空是固定句型Be about to do sth when…正要做某事在这时…;第二空是形式主语句，it是形式主语，that I could work with my roommates是真正的主语。