1.I saw him ____ bastetball with Jack an hour ago.答案是play,为什么不用playing?2.We can't use the bridge now,because it ____.being repaired,请问为什么不用is repaired?3.Tom was said to ____ Lucy for 30 years.答案是have been marrid to

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1.I saw him ____ bastetball with Jack an hour ago.答案是play,为什么不用playing?2.We can't use the bridge now,because it ____.being repaired,请问为什么不用is repaired?3.Tom was said to ____ Lucy for 30 years.答案是have been marrid to

1.I saw him ____ bastetball with Jack an hour ago.答案是play,为什么不用playing?2.We can't use the bridge now,because it ____.being repaired,请问为什么不用is repaired?3.Tom was said to ____ Lucy for 30 years.答案是have been marrid to
1.I saw him ____ bastetball with Jack an hour ago.
答案是play,为什么不用playing?
2.We can't use the bridge now,because it ____.
being repaired,请问为什么不用is repaired?
3.Tom was said to ____ Lucy for 30 years.
答案是have been marrid to,请问为什么不用with?
4.Rubbish ____ away but collected and recycled into useful things.
a.will not now given b.is not now given c.doesn't now be given d.is now not given
5.Such plants ___ never ___ in this part of the world.
a.have;grown b.are;grown
请问第四题的解析能详细一点吗?

1.I saw him ____ bastetball with Jack an hour ago.答案是play,为什么不用playing?2.We can't use the bridge now,because it ____.being repaired,请问为什么不用is repaired?3.Tom was said to ____ Lucy for 30 years.答案是have been marrid to
1.从动词saw和时间状语 an hour ago可看出是过去时态,讲的是过去发生的事,不是现在进行时.
2.从now可看出是现在进行时,我们现在不能过桥,因为它正在修整中.
3.Tom 据说已经和Lucy结婚30年了.现在完成时时态.with有“在一起”的意思是没错,但不表示延续状态,并且用在此处语法不合,with是介词,此处应填入表示现在完成时的动词
4.b 垃圾不能主动丢,是被丢,并且从选项中可看出是现在时.翻译:垃圾现在不丢,收集回收变成有用的东西.
5.b 个人以为b不是最好的答案 应该是have;been grown

1saw是感官动词,后面省略to,直接加动词原形,如果用doing就表示看见这个动作正在进行
2is being repaired表示正在维修中
3have been marrid to表示处于已婚的状态,with只是介词,只用with就没有动词了
4b
5b其实最佳答案应该时have never been grown,这里只能选b了...

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1saw是感官动词,后面省略to,直接加动词原形,如果用doing就表示看见这个动作正在进行
2is being repaired表示正在维修中
3have been marrid to表示处于已婚的状态,with只是介词,只用with就没有动词了
4b
5b其实最佳答案应该时have never been grown,这里只能选b了

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1,see sb do sth ,因为你是一小时前看到的,而不是你在那看了一小时
2,桥不能用,是因为它正在被修理,而不是被修理过
3,汤姆和露西已经结婚30年了,不用with,而是用be married to ,表示结婚的意思
4,选答案B 。后面是被动式,显然不可能是A和C 。答案在另外两个中选,B的意思是垃圾现在不是被乱扔,和后面的回收放在一起,比较通顺。
5...

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1,see sb do sth ,因为你是一小时前看到的,而不是你在那看了一小时
2,桥不能用,是因为它正在被修理,而不是被修理过
3,汤姆和露西已经结婚30年了,不用with,而是用be married to ,表示结婚的意思
4,选答案B 。后面是被动式,显然不可能是A和C 。答案在另外两个中选,B的意思是垃圾现在不是被乱扔,和后面的回收放在一起,比较通顺。
5,选A ,never一般用于完成时

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1、see sb do sth
2、now 表示现在桥正在维修当中
3、固定搭配
4、b
5、a