----Whatareyoudoing       vacation?-----I'm       mysis...

问题详情：

----What are you doing        vacation?

-----I'm        my sister. She's young but very lovely.

A. for；babysitting  B. for；looking for  C. to；babysitting  D. to；looking after

【回答】

A

知识点：动词和动词短语

题型：选择题