35. Eating moon cakes is a traditional_____ in China, which goes back centuries.
A. habit B. behavior C. custom D. action
34. You seem to be _____ busy. What are you getting at ?
A. kinds of B. kind of C. a kind of D. a kind
33. After ____ seemed to be endless waiting, I finally got a letter from my son who is studying abroad.
A. what B. it C. that D. there
32. Last week, only two people came to look at the house, ______wanted to buy it.
A. none of them B. both of them
C. none of whom D. neither of whom
31. Yesterday I hurried to the railway station only _____ I had no money to buy the ticket, so I had to come back.
A. finding B. found C. to find D. to have found
30. _____ , or you will be in great trouble.
A. If you don’t hand in your homework in time
B. Not having handed in your homework in time
C. Not hand in your homework in time
D. Please hand in your homework in time