35.Jobs are hard to get and,　　　　 , more young people are continuing their education.

A.above all 　　　　　　B.as a result 　　　C.after all　　　　 　D.on the contrary

34.Sometimes, the entrance tickets are　　　　 free of charge from the university.

A.available　　　　　 　B.valuable 　　　　　C.imaginable 　　　　fortable

33.Exploring the moon is a(n)　　　　 to China as well as the whole world.

A.opportunity 　　　　　B.challenge 　　　　C.reaction 　　　　　D.threat