Bird flu , a contagious disease of animals , is believed ____ by viruses that normally infect only birds and less commonly pigs , and rarely humans .
A.caused | B.being caused | C.to be caused | D.to have caused |
It is the first time that Mr. Smith ________ Wenzhou and I’d like to show him around.
A.visits | B.visited | C.had visited | D.has visited |
They believe that there is __________ in the world.
A.no such a car | B.no such car | C.not such cars | D.not such car |
Jack decided to buy himself an iPhone 4 _______ it means standing in line all night waiting.
A.so that | B.as if | C.even though | D.however |
________________of the students who took part in the military training(军训) is 450.
A.A number | B.A lot | C.Lots | D.The number |
--- Oh ! I’ve just broken a window.
--- ______. I know you didn’t do it on purpose.
A.Never mind | B.All right | C.That’s fine | D.Not at all |