2013年自考英语考试每日一练6.16

单项选择题

Some people who are very intelligent and successful in their fields find _______ difficult to succeed in language learning.

A.which

B.how

C.that

D.it

编辑推荐：

2013年自考英语考试每日一练6.14

（责任编辑：何以笙箫默）