Before 2003, there was no direct airline __________ Taiwan and the mainland.
A. along B. in C. between D. at
It was the second time for China to send a manned(载人的) spaceship into the sky, but it was the __________ time for Fei Junlong and Nie Haisheng to go to the space.
A. first B. second C. third D. last
In the exam,the you are,the mistakes you’ll make.
A.careful,little B.more careful.1ess
C.mole careful,few D.more careful,fewer
—Sorry I can’t work out this problem.
—Try again,please,It’s only. difficult.
A.a bit B. a lot C.very D.much too
In many countries,teenagers under 18 should not to enter Internet bars.
A. allow B.be allowed C allowed D.to allowed
一What’s wrong with you?
一I’m having trouble .
A. in breathing B.on breathing C.to breathe D. to have breathed