21£®----Tomorrow is a holiday. Why are you doing your homework?

   ----I am doing these exercises now so that I won’t have _____ on Sunday.

  A. it    B. them    C. for    D. to

22. ----Shall I invite Ann to my birthday party tomorrow evening?

   ----Yes. It’ll be fine if you______.

A. are   B. can    C. invite   D. do