35. Children in the countryside can receive education ________ free since last year.

A. for　　　　　　　　 B. in　　　　　　　 C. of　　　　　　 D. on

34. --- I can’t find Xiao Ping. Where did you see him this morning?

--- In the reading room _________ he often studies in.

A. that 　　　　　　B. where　　　　　　 C. in which　　　　　　 D. the one

33. I regret _________ going on a holiday to France because of the bad weather last week.

A. having given up　　　　　　　　　　　 B. to give up　

C. having given back　　　　　　　　　　　 D. to give back

32. All __________ can be done has been done.

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