问题补充:
Some intelligent and successful people find difficult to succeed in language learning.
A. them
B. it
C. themselves
D. itself
答案:
A. them
(答案→)B. it
C. themselves
D. itself
解析:考查it做形式宾语:句型:find it+adj+to do sth…,发现做…怎样…,句意:一些聪明的勤奋的人发现在语言学习的上很难成功。选B。