–Do you want to go hiking with me this weekend?I’d love to. But I have to my little br

问题补充：

–Do you want to go hiking with me this weekend?

--I’d love to. But I have to my little brother at home.

A. babysit

B. look over

C. look at

D. take care

答案：

(答案→)A. babysit

B. look over

C. look at

D. take care

解析：不能去玩应该是照顾小弟弟，babysit表示此意，故选A,look over检查，look at看，take care of表示照顾，故不能选BCD。