15.过去将来完成时:(would have done) 例:I believed by the end of that year an advanced version of that software would have been developed, but I was wrong. 我坚信到那年年底为止,那个软件的新版本将被开发出来。但是我错了。 16.过去将来完成进行时:(would ...
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...
6. may have done sth可能做过某事 否定形式:may not have done 例:Philip may have been hurt seriously in the car accident. 7.might have done sth 或许做过某事 否定形式: might not have done 例:She might have known what the bottle contained. 8.should hav...
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接受建议)动词·做...
怎样表达“自作多情”和“没心情”? 一起来看《摩登家庭》学地道口语。 1. stab sb in the back stab sb in the back指的是在(某人)背后捅刀子(指伤害信任自己的人)。 He had been lied...
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