问题补充：
I often mistake him for his brother, because he his brother so much.
A. is similar
B. resembles
C. looks as
D. is alike
答案：
A. is similar
(答案→)B. resembles
C. looks as
D. is alike
解析：考查固定用法。be similar to与…类似；resemble sb in…在…方面与sb类似；looklike…看起来像….; be like…像….;A项少了to; C应该改为look like; D应该改为is like.
