celebration of the university’s 100thbirthday, he said, “I have never experienced __________ time here as a graduateof Tsinghua University.”

I went along thinking of nothing________, only looking at things around me.[ ]

This is a process happens when land becomes desert people cut down trees and dig up grass

These people were mentioned at the meeting, , Tom, Helen and Brown

As soon as you come back from the airport, please give a call.