______ exciting sport it is to climb the mountains!
—We’re supposed to recycle paper and bottles.It can help the environment.—________.It can save money,too.
The number of books in the bookshop is about 10,000 and a number of them________about science.
Would you please________my baby while I’m cooking?
—Why are you standing there,Mingming?—Two tall boys are sitting________me,so I can’t see the blackboard clearly.
Sally used to be________,but now she enjoys meeting and talking to new friends.