At the Copenhagen conference, all the countries were called on to do all they could to control greenhouse gas emissions________it was too late.
| A．when | B．after | C．until | D．before |
相关试题
There is no need for you to look up every new word you _____ when reading. You have to learn how to guess the meanings of new words according to the context.
| A．come up with | B．come out | C．come along with | D．come across |
—What did John say about leaving the city?
—He said he disliked the place so he had no _____ about leaving so soon.
| A．hopes | B．regrets | C．memories | D．comments |
There is still much to discuss. We shall, _____ return to this item at our next meeting.
A. therefore B. however C
otherwise D.briefly
—I’m sure Andrew will win the first prize in the final.
—I think so. He _____ for it for months.
| A．is preparing | B．was preparing | C．had been preparing | D．has been preparing |
he; the相关知识点
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