英语一致关系习题求解!1.I don't swim now,but I

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1.I don't swim now,but I__when I was a kid.
A.used to it B.used to doing it C.used to D.used to do 答案为什么选C而不能是D?
used to do 过去常常做某事,在这里选C 是为了避免重复用的一种省略现象.注意省略时只需保留不定式符号to即可.
2.It is reported that__adopted children want to kow who their naturai parents are.
A.the most B.most of C.most D.the most of为什么答案选C而不能是B?
most +复数名词=most of+the+复数名词
3.Orlando,a city in Florida,__for its main attraction Magic Kingdom.A.which is well known B.is well known C.well known D.being well kown这个题的答案为什么是B而不能选C?
这里需要谓语动词的形式.而C well known实际上是形容词不能单独作谓语.
以...而闻名 be well know for sth.
4.A good setof tires__to last at least twenty thousand miles.A.is supposed B.are supposed C.supposed D.suppose 答案为什么用A?谓语动词是单数的形式?
a set of一套,a pair of一幅这样的词组作主语时要根据set,pair这些计量单位的单复数来确定谓语动词的单复数形式.
Two pairs of shoes are on the floor.
A pair of shoes is on the floor.
5.No sound an no voice__for a long while.A.are heard B.is heard C.have heard D.has heard 答案为什么选B,而不是D?for a long while不能用于完成时吗?
D项如果改为被动语态就对了.因为声音是被听到的.
6.The linebacker and captain of the team__most valuable player.A.have been selected B.has been selected C.have selected D.has selected 为什么答案选B?谓语用Has而不是have?the linebacker and captain不