—How many English words have you learnt now?—We had learnt over 1,500 English wo

题型：不详难度：来源：

—How many English words have you learnt now?
—We had learnt over 1,500 English words ___________ the end of last week.

A．at

B．in

C．by

D．with

答案

C

解析

试题分析：句意：你们学会了多少英语单词？到上周末我们已经学了1500多个英语单词。At the end of在···结束时；in the end最后，终于；by the end of在···结束之前，所以选C。