Does＿＿＿matter whether he can finish the job on time? A. thisB. thatC. heD. it

问题补充：

Does＿＿＿matter whether he can finish the job on time?

A. this

B. that

C. he

D. it

答案：

A. this

B. that

C. he

(答案→)D. it

解析：it作形式主语，代替if从句所表达的内容。