A) isn't B) wasn't C) weren't D) hadn't been 33.The population of many Alaskan cities has ___ doubled in the past three years. A)larger than B)as great as C)more than D)as many as 34.All that can be done ___. A)have been done B)have done C)has done...
例:They said that by the end of the following month, the project would have been being worked for 3 years. 他们说到第二个月底为止,这项工程就已经不停地进行了3年了。 15. 将来...
4. 现在完成进行时(have been doing) 用法:表示某一动作开始于过去某一时间,延续或重复地出现至今,或将继续延续至将来。 例:We have been working on this project for over a month now.(到目前为止,我们一直在处理那个项目,已经花了一个多月时间了。) ...
been和done的区别 been是be的过去分词;done是do的过去分词。常见的用法是have done和have been done,have done是主动形式的现在完成式,have been done是被动式的现在完成式。 1、done的含义及相关短语用法 形容词adj.已完成的;煮熟的;合乎礼仪的;合乎规矩的感叹词表示...
22. We’re extremely proud of the research our R & D team has done. 我们为研发小组所取得的成果感到非常骄傲。 23. They have been doing some excellent work on the prototype...
更多内容请点击：2023年广东学位英语真题及答案