13.The _______________ stage has been reached and we must do something to change thesituation today.
critical
举一反三
- —Must we finish the work today? —________. We have something else to do tomorrow.
- Tim ______ not come today because his flight has been delayed. A: might B: must
- Only recently_________ to deal with the environmental problems. A: something has done B: has something done C: has something been done D: something has been done
- It has been often said that books do for us today is what university did in earlier ages.
- Only in the past few years _______ to improve the living conditions in this area. A: something has been done B: there is something done C: has there something been done D: has something been done
内容
- 0
It is desirable that we _____ of any change in plans. A: are informed B: must be informed C: be informed D: have been informed
- 1
How do you understand currency as one of the elements of news values? A: Something that has financial significance. B: Something that is fresh and new. C: Something that has been long simmering suddenly sparks heated discussion. D: Something that has high social responsibility.
- 2
No sooner ___ the airport than the plane took off. A: had we reached B: we had reached C: we reached D: do we reach
- 3
We must do something about __________ our natural resources. A: preserving B: present C: reserve D: protect
- 4
No agreement was reached ________ how much we must pay.