Some people fear that ________ air pollution may bring about changes in _______ weather around the world.
| A．/; the | B．the; / | C．an; the | D．the; a |
---I’m thinking of the test tomorrow. I’m afraid I can’t pass this time.
---______! I’m sure you’ll make it.
| A．Go ahead | B．Good luck | C．No problem | D．Cheer up |
— I’d rather have some wine, if you don’t mind.
—. Don’t forget you must drive.
| A．Anything but that | B．By all means |
| C．Take it easy | D．I won’t say no to this |
The world’s elderly population will exceed(超过) ____ of children by 2060, when each group ____ to account for about one fifth of the population.
| A．that ; is expected | B．it; will expect |
| C．that; expects | D．one ; will be expected |
The U. S．declares it has the best medical technology in the world，but quite a lot of Americans have no ____to health care service．
| A．devotion | B．entrance | C．access | D．introduction |
We’d better _____ some sports because sports can give us a perfect build and protect us from getting illness easily.
| A．make up | B．take up | C．pick up | D．build up |