We now live in a world where labor is __________ compared to capital which is very rare.
| A．absurd |
| B．abundant |
| C．cheap |
| D．costly |
According to a new survey carried out by an American university, learning______ second language can result in_______ increase in the power to learn your native tongue.
| A．a; the | B．不填; the | C．a; an | D．the; an |
Mary, remember to bring the CD I want next time, _______?
| A．does she | B．doesn’t she | C．will you | D．won’t you |
Look! She is coming here and there _________.
| A．goes the bus | B．going the bus | C．the bus goes | D．the bus going |
–I could not start my car this morning due to the cold weather.
--No wonder you were late. You ___ have used mine. I was not using all the morning.
| A．should | B．must | C．could | D．might |
Only by reading more books improve your reading skills.
| A．you can | B．can you | C．do you | D．you do |