He waited with his companion the rescuers came, and then helped them carry her back down the mountain.
A. when B. until C. unless D. while
It's for an employee of this company to work seventy" hours a week since the competition is fierce in the industry.
A. ordinary B. usual C. average D. regular
_____the 19th-century America, the novel Gone with the Wind tells the story of a woman facing war and starvation bravely.
A. Set up B. Set down C. Set in D. Set off
You did me a huge favor. However, I lack words to express my thanks.
A. through which B. with which C. where D. for which
Tom was running out of time in the exam, but there still remained several questions .
A. to be answered B. to answer C. answered D answering
If you need any more paper, I'll bring you .
A. one B. ones C. some D. it
