3.I( )have watched that movie—it`ll give me horrible dreams A.shouidn`t B.needn`t C.couldn`t D.mustn`t4.Jack described his father ,who()brave boy many years ago,as a strong-willed man.A.would be B.would have been C.must be D.must have been5.--Sorry

3.I( )have watched that movie—it`ll give me horrible dreams A.shouidn`t B.needn`t C.couldn`t D.mustn`t4.Jack described his father ,who()brave boy many years ago,as a strong-willed man.A.would be B.would have been C.must be D.must have been5.--Sorry
3.I( )have watched that movie—it`ll give me horrible dreams
A.shouidn`t B.needn`t C.couldn`t D.mustn`t
4.Jack described his father ,who()brave boy many years ago,as a strong-willed man.
A.would be B.would have been C.must be D.must have been
5.--Sorry.Professor Smith ,I didn`t finish the assignment yesterday.
--Oh,you()have done it as yesterday was the deadline.
A.must B.mustn`t C.should D.shouldn`t
如果只给答案不写原因的就免了

3.I( )have watched that movie—it`ll give me horrible dreams A.shouidn`t B.needn`t C.couldn`t D.mustn`t4.Jack described his father ,who()brave boy many years ago,as a strong-willed man.A.would be B.would have been C.must be D.must have been5.--Sorry
A.shoud not have done不该做某事（但实际应该做了）
needn`t have done不必要做（但实际上还是做了）
后面两个意思可以照着上面的理解,因为都是虚拟语气,所以表示的意思相反
D.must have been 那时一定是（PS：你那个句子后面是不是省略了一个冠词“a”啊）
would be 表示对将来的假设
would have been 本应该是（但实际不是）
must be 一定是（一般用在现在时）
C.shoud have done应该做某事（但实际没做）
这些基本都是考察虚拟语气的吧

cbd

A D

ACC

3. A shouldn't have done=本不该
这句话的意思是，我本不该看那场电影的--看了现在老是做恶梦。
4. D must have been 是对过去事实肯定的推测
Jack描述的他那个拥有着坚强意志的父亲，很多年前一定是个勇敢的男孩~~
5. C should have done=本该做某事
这句话是讲，你本该昨天就完成的，...

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3. A shouldn't have done=本不该
这句话的意思是，我本不该看那场电影的--看了现在老是做恶梦。
4. D must have been 是对过去事实肯定的推测
Jack描述的他那个拥有着坚强意志的父亲，很多年前一定是个勇敢的男孩~~
5. C should have done=本该做某事
这句话是讲，你本该昨天就完成的，因为那是最后期限了。

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A, 这个你要翻译出来， 既然这个电影会让我做噩梦， 我本来不该看
B, 猜测他的父亲过去是个什么样的人，所以要用would have been
C,依然要翻译出来 因为昨天是deadline,所以你应该昨天就做完才对