— I telephoned him twice and I couldn’t get through to him.
—I think that the line might have been out of order, _______?
A. don’t you B. wasn’t it C. do you D. hadn’t it
—How do the shops make money if they sell at such low prices?
—Manufacturers, it seems, are willing to bring down prices _______ big volume purchases.
A. under the name of B. on behalf of
C. in return for D. in preparation for
It is commonly assumed that the growth of GDP and the development of people’s living conditions are not _______cause and effect.
A. nearly B. possibly C. purposely D. necessarily
—How much is too much for a schoolbag?
—Experts say students should carry_______ more than 10 or 15 percent of their body weight.
A. no B. not C. any D. far
Although the huge engine, as tall as 25 meters, is heavy_______, it is powerful and works well.
A. carried B. to be carried C. to carry D. being exposed
Some people haven’t realized something as common as _______to the sun for a long time will do harm to their skin and even cause skin cancer.
A. exposing B. being exposed C. having exposed D. exposed
