Mr. Han is very old and he can’thimself. So he lives with his children now.A. look atB. lo

问题补充：

Mr. Han is very old and he can’thimself. So he lives with his children now.

A. look at

B. look after

C. look like

D. look for

答案：

A. look at

(答案→)B. look after

C. look like

D. look for

解析：look at看；look after照顾，关心；look like看起来像……；look for寻找。句意：韩先生非常老，他不能照顾他自己，因此现在他和孩子们生活在一起。结合语境可知选B。