题目

题型：不详难度：来源：

He realized she was crying ________ his words.

A．because

B．because of

C．as

D．since

答案

B

解析

试题分析：考查because 和because of，意思都是因为，because引导句子，而because of引导名词或名词性短语，as意思“作为”，since意思“自从…”，句子意思“他意识到因为他的话她就哭了”，所以选B
点评：注意because 和because of的区别，做题时要细心，句子He realized she was crying because of his words.是个宾语从句，省略了引导词that。