Mary couldn’t go to the cinema with us because she had to her little brother.A. look for

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 afterC. look at D. look into

答案：

解析：此题重点考查动词短语辨析，look for寻找；look after照顾、照看；look at看；look into调查，根据句意：玛丽不能和我们一起去看电影了因为她必须照看她的小弟弟，故选B