It is already well understood causes the global warming.
A. what B. when C. that D. how
— Jim has gone to Britain to see a modern art exhibition.
— Oh, really? Do you know when he ?
A. leaves B. will leave C. was leaving D. left
— She looks rather upset. She the exam.
— I guess so. It’s very difficult after all.
A. must have failed B. can fail
C. would have failed D. should fail
— Are you expecting to receive a digital camera as a gift?
— Yeah! I can’t wait to get .
A. some B. any C. it D. one
The listeners were much than hoped. There were so many tickets left.
A. fewer B. larger C. more D. less
He has been the computer for two hours, chatting with a boy from Australia.
A. in B. on C. at D. by
