once eyes are fixed on sth.

7. 过去将来时(would/ should do)用法:表示从过去的某个时间看将要发生的事。例:I said onThursday I should see my friend the next day.(我星期四说我将于第二天拜访我的朋友。)注意事项:由于过去将来时是由过去时和将来时组合而成的,所以其注意事项可以参考过去时和将来时的相关注意事项。8. 过去进行时...

例:Great as Newton was, many of his ideas ___ today and are being modified by the work ...7. 过去将来时(would/ should do) 用法:表示从过去的某个时间看将要发生的事。 例:I said on Thursday

7. 过去将来时(would/ should do)用法:表示从过去的某个时间看将要发生的事。 例:I said on ...在主语是第一人称单数中动词be用am,第一人称复数、第二人称单数和复数以及第三人称复数中动词be用are

A) are to challenge和D) are challenging都是主动语态,不可能是答案。B) may be challenged虽然是...例:The coach is on the point of giving up the game because our team has been scored 7 points...例:The old clock had been being taken apart of and fixed up again for several times by my ...

例:Great as Newton was, many of his ideas ___ today and are being modified by the work of...7. 过去将来时(would/ should do) 用法:表示从过去的某个时间看将要发生的事。 例:I said on ...例:The old clock had been being taken apart of and fixed up again for several times by my ...

7. 过去将来时(would/ should do) (被动语态:would/ should +be+过去分词)用法:表示从过去的某个时间看将要发生的事。 例:I said on Thursday I should see my friend the next day.(我星期四说我将于第二天拜访我的朋友。) 注意事项:由于过去将来时是由过去时和将来时组合而成的,所以其注意事项可以...

Used to do经常与 be used to doing sth/ sth结构进行对比。前者表示"过去常常或过去曾经"，要求加动词原形；后者表示"习惯于"，要求加名词或动名词。6. 过去完成时(had done)用法：表示在过去的某个时间或动作以前已经发生的动作或已经存在的状态。就是我们常说的：表示"过去的过去的动作或状态"。

例：The old man would sit on a bench in the quiet park and look at others for hours without doing anything or talking to anybody.（老人过去常常坐在宁静的公园里的一条长椅上，看着其他的人，一坐就是数个小时，什么也不干，也不和任何人交谈。）He used to visit his mother once a...

A) are to challenge和D) are challenging都是主动语态,不可能是答案。B) may be challenged虽然是...7. 过去将来时(would/ should do)用法:表示从过去的某个时间看将要发生的事。例:I said on

7. 过去将来时(would/ should do) 用法:表示从过去的某个时间看将要发生的事。 例:I said on Thursday...The old clock had been being taken apart of and fixed up again for several times by my 10-