Most experts agree that human activities such as the clearing of large areas of forests, and farming on a large scale _________ the problem of global warming.
| A.is leading to | B.is resulting in | C.are contributing to | D.are owing to |
He particularly enjoyed __________ a trick on the three men.
| A.play | B.played |
| C.playing | D.to play |
—Did you enjoy yourself last night?
—Yes, it's very nice of you. I appreciated __________ to the party.
| A.to be invited | B.to have invited |
| C.having been invited | D.having invited |
The man insisted __________ a taxi for me even though I told him I lived nearby.
| A.find | B.to find |
| C.on finding | D.in finding |
Isn't it time you got down to __________ the papers?
| A.mark | B.be marked |
| C.being marked | D.marking |
In some parts of London, missing a bus means __________ for another hour.
| A.waiting | B.to wait |
| C.wait | D.to be waiting |