—Thatmusthavebeenalotofwork.—Yeah,it      usthreedayst...

問題詳情：

 —That must have been a lot of work.

—Yeah, it         us three days to finish it.

A. takes                  B. had taken           C. took           D. was taking

【回答】

C

知識點：一般過去時及其被動式

題型：選擇題