________hard before, Tom is afraid of failing in the exam.
A.Having been worked | B.Not to have worked |
C.Having never worked | D.Never have worked |
The collapse of the World Trade Centre has put US economy in a difficult___________.
A.occasion | B.case | C.situation | D.background |
More and more people choose to shop in a supermarket as it offers a great _______of goods.
A.variety | B.mixture | C.extension | D.combination |
Life is tough in the city. In order to lose their ,some people drink alcohol.
A.temper | B.mood | C.consciousness | D.pressures |
One of the consequences of our planet's being warming up is a(n)_______ in the number of natural disasters.
A.result | B.account | C.reason | D.increase |
“I don't think it's my ________that the TV blew up. I just turned it on,that's all,”said the boy.
A.error | B.mistake | C.fault | D.duty |