Unit 1 The Changing World
综合能力演练
I.单项选择。
1.The Greens _____ China for seven years.
A.have come to B.have been to C.have come in D.have been in
2.It’s necessary for you _____ exercise every day.
A.taking B.to take C.take D.takes
3.Xi’an is a city with many places of interest and _____ tourists come here every year.
A. thousand of B. thousand C. thousands D. thousands of
4.This is the most beautiful park I have _____ visited.