Does matter much if they do not come tomorrow?A. thisB. itC. thatD. he

问题补充：

Does matter much if they do not come tomorrow?

A. this

B. it

C. that

D. he

答案：

A. this

(答案→)B. it

C. that

D. he

解析：考查it的用法：为了避免头重脚轻，it可以代替主语从句，这句话是主语从句是if they do not come tomorrow，句意：他们明天不来很要紧吗？选B。