—What do you think of Changqing?
—I think it’s becoming _______ than before.
| A．clean | B．cleaner | C．cleanest | D．the cleanest |
Teachers often tell their students _______ across the road when the traffic light is red.
| A．not go | B．not to go |
| C．don’t go | D．didn’t go |
–Lots of trees and flowers ________ on both sides of the road last year.
--Oh, _______ beautiful they are!
| A．have been planted; how | B．were planted; what |
| C．were planted; how | D．have been planted; what |
–Where is Tom? --He _______ the USA. He _______ back in two months.
A. has gone to; comes B. has been to; will be
C. has been to; comes D. has gone to; will be
–Do you know the man ________ visited the United States in February?
--Yes. He is Chinese Vice-President Xi Jinping. He said it was his ____ visit to the United States.
| A．/, five | B．that, five |
| C．who, fifth | D．which, fifth |
---Who can tell me_______? ---Every 15 minutes.
| A．when the bus will arrive. | B．how often the bus arrives |
| C．how long has the bus been away | D．when will the bus arrive |