(单选题)

Mary often does some translation work to earn extra money, which ______ half of her income.

A.counts on

B.makes for

C.accounts for

D.consists in

参考答案：C

参考解析：

考查动词短语辨析。句意：玛丽经常做一些翻译工作来挣外快，这占了她收入的一半。count on意为“指望”；make for意为“走向，导致”；account for意为“占”；consist in意为“存在于”。根据句意和选项含义可知C项正确，外快占了她收入的一半。故选C。

知识点：