Today the forests are getting fewer and fewer. We must _______ down too many trees.
A. keep people cutting B. prevent people from cutting
C. stop people to cutting D. all the above
______ Mike didn’t win the race , he was still wearing a smile on his face.
A. If B. Since C. Although D. Because
The old couple _______happily at their home when I walked past yesterday afternoon.
A. heard singing B. heard to sing C. were heard singing D. was heard to sing
---I’m sorry. There was too much traffic on the road.
---Never mind. The meeting _______ for only 5 minutes.
A. has begun B. has stopped C. has been on D. has finished
We should plant more trees because they can keep the soil _____ place.
A. to B. with C. in D. on
---______ will we arrive at the airport?
--- In two hours.
A. How often B. How long C. How far D. How soon
