选择题,求解.23. " Listen, Mary is singing in the room." "That be Mary. She is in hospital. "A. may not B. shouldn't C. wouldn't D. can't( ) 24. He the book by last summer, but it a few times since then.

选择题,求解.
23. " Listen, Mary is singing in the room." "That be Mary. She is in hospital. "
A. may not B. shouldn't C. wouldn't D. can't
( ) 24. He the book by last summer, but it a few times since then.
A. hadn't read, has read B. hasn't read, had read
C. hadn't read, read D. didn't read, read
( ) 25. What she about them couldn't as a fact. She wasn't honest.
A. has said, accept B. said, accept C. said, be accepted D. has said, be accepted
( ) 26. The teacher praised the naughty student for his English in a very short time.
A. having improved B. has improved C. improved D. improving
( ) 27. I won't excuse him me about what happened to my best friend Fried.
A. didn't tell B. hasn't tell C. no telling D. not telling
( ) 28. had he had time to see the city when the war broke out and he had to leave.
A. As soon as B. No sooner C. Hardly D. No longer
( ) 29. "None of them need do any work today, they?" "Yes, all of them "
A. needn't, need B. mustn't, must C. need, needn't D. need, must
( ) 30. Although he is considered a great writer, his works are not widely read.
A. but B. however C. and D.不填
请一定要说出为什么?

23题.d cannot否定程度比maynot大,由题意可知排除maynot .shouldnot 中文意思为不应该,由题意不选 wouldnot意思为将不会.故不选.24.有上半句可知是一个完成时态的句子,故不选d,又因为是最后的夏天所以是过去式,排除b,从since便知是完成是故选a

D. 不可能是Mary，因为她在住院。
A。 到上个夏天为止，他都没有读过这本书。 可是从那以后，他读了很多遍。by, since都是有时间段，所以用完成时。
C。 said是个不能延续的动词。 不能被接受，所以要用被动语气。
A。 praise for 为。。。鼓掌。 for 后面要跟名词形式，所以用ing。 因为praised是过去时，所以having improved...

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D. 不可能是Mary，因为她在住院。
A。 到上个夏天为止，他都没有读过这本书。 可是从那以后，他读了很多遍。by, since都是有时间段，所以用完成时。
C。 said是个不能延续的动词。 不能被接受，所以要用被动语气。
A。 praise for 为。。。鼓掌。 for 后面要跟名词形式，所以用ing。 因为praised是过去时，所以having improved
D。 excuse是谓语，后面是宾语。 not telling只是修饰him
C. 他没有时间去参观那座城市，因为战争爆发了，他必须离开。
D。 反问句。因为前面是问“他们今天都不需要工作吧，”反问自然要是肯定的，所以是need them? 因为回答是“yes”，所以要是肯定的。
D。 因为前面有Although

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