In the future, care for the environment will become very important as earth’s natural resources _____．
| A．add up | B．set down | C．close up | D．run out |
—This teaching method seems good.
—True. It can be __________ in a few selected schools to see how it works in practice.
| A．worked out | B．let out | C．tried out | D．picked out |
Was it in the cinema __________ Mr. Smith met you __________ you saw the film?
| A．where; that | B．that; that | C．where; which | D．which; that |
Either you or one of your students __________ to attend the meeting that is due tomorrow.
| A．are | B．is | C．have | D．be |
What we have to admit is that never in the past thirty years __________ so greatly as today.
| A．has China changed | B．China has changed |
| C．did China change | D．China had changed |
There was such a long queue for coffee at the intervals that we __________ have to give up.
| A．faithfully | B．eventually | C．especially | D．constantly |