问题补充:
Mary couldn’t go to the cinema with us because she had to her little brother.
A. look for
B. look after
C. look at
D. look into
答案:
A. look for
(答案→)B. look after
C. look at
D. look into
解析:A. look for寻找B. look after 照顾 C. look at看一看D. look into调查;句意:玛丽不能和我们去电影院因为她要照顾她的小弟弟。故选B.