2016-2017学年 人教版 必修1 unit3 Travel journal Grammar 课件 (7)
2016-2017学年 人教版 必修1 unit3 Travel journal  Grammar 课件 (7)第2页

I’m babysitting on Thursday Would you like to go out on Monday?  No, sorry, I can’t.  Why not?  I’m babysitting on Monday.  Would you like to go out on Tuesday?  No, sorry, I can’t.  Why not?  I’m doing my laundry on Tuesday.