问题 选择题

________ the plan has been made, let’s get down to ________ it out.

A.Now that; carry

B.Because; carry

C.Since; carrying

D.Now; putting

答案

C 

get down to(doing)sth.表示“开始认真做事”,now(that),since均表示“既然,由于”。

单项选择题
单项选择题