My sister is only two years old and I have to her on Sunday.A. look forB. look afterC. l

问题补充：

My sister is only two years old, and I have to her on Sunday.

A. look for

B. look after

C. look like

D. look at

答案：

A. look for

(答案→)B. look after

C. look like

D. look at

解析：look for寻找；look after照顾；look like看起来像……；look at看。句意：我妹妹只有两岁，我星期日不得不照看她。