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英语语法疑惑1,What the revolutionaries______ doing_____good to the

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英语语法疑惑
1,What the revolutionaries______ doing_____good to the working people.
A are ,are B,were,is
选择什么?
话说 what引导的主语从句,谓语动词的单复数取决于作表语的名词的单复数.
那么本题做表语的名词是哪个?
2,There_____ a group of children______ loudly outside the room.
A,was ,talking A,were,talking
C,were.were talking D,was,to talk
这里面的第一个空到底是填 单数还是复数?a group of children.
到底是有of后面的名词决定单复数,还是group决定
1.选B.
第一空是what引导的主语从句的谓语动词,所以要和主语revolutionaries一致.
第二空的表语是系动词good,所以what引导主语从句其后的谓语动词此时用单数.如果what引导的主语从句其后的表语是复数名词时谓语动词才用复数.
比较:What I bought yesterday are some English novels.
2.选B.
a group of children是复数名词,所以其谓语动词要用复数.
比较:There is a pen and some books on the desk.
  课桌上有一支钢笔和一些书.
There are some books and a pen on the desk.
A pair of glasses is on the table.
Two pairs of glasses are on the table.
你在百度搜索主谓一致的语法,就可以看出,根本没提到a group of +复数名词要和group 一致的说法.
加油!