As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even larger volume of poisonous gas.
A.exposure | B.distribution | C.expansion | D.emission |
During the test we were supposed to stay in our seats , keep our eyes on our work , to anyone .
A.but could not talk | B.instead of speaking |
C.rather than speak | D.and not speak |
The moon is the earth .
A.as big as forty-nine times | B.forty-nine times bigger than |
C.as big as one-third | D.one-third the size of |
—Have a good rest ; you need to your energy for the football match this afternoon .
—Thanks a lot .
A.leave | B.save | C.hold | D.get |
This is the book I bought yesterday , I spent 8 yuan .
A.on which | B.for which | C.in which | D.at which |
Jack had traveled six miles across the Channel his engine failed and was forced to land on the sea .
A.when | B.until | C.after | D.since |