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——用be填空1)My family __ having supper now.2)Tom as well as two

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——用be填空
1)My family __ having supper now.
2)Tom as well as two of his classmates __ invited to party.
3)All the food __ ready for the picnic.
4)The police__ looking for the lost child.
5)Many a friend __ better than a lot of wealth.
6)Nothing but trees __ to be seen.
用be填空.要说明理由!
5)是Many a friend_ 没有错!
1.are 指全家人复数
2.is as well as 及with 谓语动词都是由前面的主语来决定
3.is 不可数名词
4.are 指警察人员不可能是单数
5.are many a +单数名词= many +复数名词
6.is 主语 是nothing 不定代词
注:6 nobody but 表示单一概念,谓语动词用单数形式;none but 可指人也可指物,通常指前面提到的同一事物,谓语动词要用复数形式; nothing but 泛指 but 后事物以外的任何事物谓语动词为单数