They seemed to be too nervous and were too anxious to leave, so I asked whether they wanted to go ahead of me or not. They didn’t understand what I meant/ had meant at first. After knowing it, they were very appreciative. But they stood behind me. 这个句子是用过去完成时还是...
...去，相当于独立的名词短语。各位老师怎么看？So some new behaviours will stick, but not all, and the result will be somewhere in the middle. Exactly where will have enormous implications: for transport patterns, property prices and the layout of cities, among other things.
...so rude to my sister this time but don't let it happen again B:your being D:you having been 答案选择B，我选择了D，这里的this time 表示事件已经发生， 并影响现在使我做出“忽视”这个举动。我认为应该使用完成时态动名词作主句宾语，逻...
Unless a new approach is found to controlling the number of cars,we
will never find a solution to the dilemma.这个句子为什么controlling用的不是原型control，没有查询到有be found to中以to作介词的用法，这里应该是正常的不定式吧，那为什么用doing形式?
...If you leave something or
someone doing something, when you go away they are still doing it 离开时…继续做…I
left the children watching television.按照剑桥的解释，这里的现在分词短语到底是什么成分？
—His family clocked up a lot of debts when he was in prison. —I can't imagine how difficult life was to them. He used to be the only one to support the faimily.这里它用difficult to them ,正确吗？和 difficult for them一样?
...they dare not put their idears into practice,since they're afraid of being punished if they disobey rules.我的疑问是if这里，我理解的是条件状语从句，可是前面为什么不是将来时态呢？而且感觉since后已经是前句的原因了。if这句好奇怪啊。麻烦您...
地点副词前置的倒装句有种类型为：地点副词+be+过去分词+主语。如：“Behind the door was locked a man.”其中lock为及物动词。而为何题目中句子“Not far from the upper ford was met by them an old friend of theirs.”因为met为及物动词不可倒装而是...
I've enjoyed my stay here.I will be sorry to leave.They have failed to give any answer.这两句的谓语我认为都是持续非终结动词。第一句"my stay"还没有结束，到现在为止都很享受。第二句是到现在为止都没给出回复，之后会不会回复不清...
Aluminum（铝） remained unknown until the 19th century，because nowhere in nature is it found free，owing to its always being combined with other elements，most commonly with oxygen，for which it has a strong affinity.（亲和力）最后一句为什么不直接for it has...变成原因状...