21.--- Do you think he’ll take part in the upcoming sports meeting ?

   --- __________. He hasn’t completely recovered from his illness.

   A. Sure, I think so              B. I don’t agree.

   C. It’s hard to say             D. I’d rather not

22.He is determined and hard working, _________ makes him a hopeful young man.

   A. which        B. that          C. as          D. what