31. ---Ellis, I’m sorry. I can’t fly a kite with you tomorrow.
---___?
---I fell off my bike yesterday and my leg hurts today.
A. How are you B. How about
C. How come D. What’s the problem
32. ---What’s the general attitude to smoking in public places?
---People ___ less tolerate of smoking these days.
A. become B. have become C. became D. are becoming