问题
选择题
–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
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。