must have done 和must have been 的区别

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• 两道2012辽宁高考英语单选题,求答疑33.Jack is a great talker.It's high time that he_______ something instead of just talking..It's high time that 啥意思?A.will do B.has done C do Ddid（答案D,我选A）35.Mum,I was wondering if you could lend me a few dollars until I __________ on Friday.A.get paid B.got paid C have paid D had been paid（答案是A,我选B）get ,have 搭配词组有啥区别?最好每个选项都能解释下~
• 34.I can't find the recorder in the room.It __by somebody.A.may have been taken awayB.may leaveC.may take awayD.must have taken away我认为D,
• 写出与句中划线部分意思相近或相同的词语1.Could I go to the cinema this evening,Mom?(go to the cinema划线）2.Can we have breakfast before seven o'clock( have breakfast 划线)3.Joe has to do some washing on Sunday morning.(do some washing)4.I must get there on time.(must )5-Could you please buy me a ruler?-Certainly.(Certainly.划线）
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• 英文语法有没有错误?急用!on your way home late at night.You should walk the street which have a large pepple.You msut alert suspect people who have follow up you come back home.我想说的是 在夜晚回家的路上 你应该走在人多的街上 你必须警惕有没有可疑的人跟著你回家！must 跟 people 是打错字！
• 什么时候用have什么时候用 has?has用于第三人称单数（如：he、she、it……）have用于第三人称复数（如:we、they……）和第一人称（如：I、you……）——————————————————————————————————除此之外还有什么规则?还有、当主语是some flowers之类的some+名词的时候使用has还是have希望再给我讲讲are和is的区别
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• When did you first visit China?I think it _____in 1996,when my parents were teaching in YunnanUniversity.A.must be B.should have been C.may be D.must have been其余选项为什么不对,尤其是A?
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