初中英语主谓一致疑问19.Each boy and each girl ____ hard.A.are working B.has worked C.is working D.haved worked 为什么选B21.No food and no water ____ in the house.A.is B.has C.are D.have为什么选A两个不可数名词用and连接不

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初中英语主谓一致疑问19.Each boy and each girl ____ hard.A.are working B.has worked C.is working D.haved worked 为什么选B21.No food and no water ____ in the house.A.is B.has C.are D.have为什么选A两个不可数名词用and连接不

初中英语主谓一致疑问19.Each boy and each girl ____ hard.A.are working B.has worked C.is working D.haved worked 为什么选B21.No food and no water ____ in the house.A.is B.has C.are D.have为什么选A两个不可数名词用and连接不
初中英语主谓一致疑问
19.Each boy and each girl ____ hard.A.are working B.has worked C.is working D.haved worked 为什么选B
21.No food and no water ____ in the house.A.is B.has C.are D.have为什么选A
两个不可数名词用and连接不是要用复数么、、

初中英语主谓一致疑问19.Each boy and each girl ____ hard.A.are working B.has worked C.is working D.haved worked 为什么选B21.No food and no water ____ in the house.A.is B.has C.are D.have为什么选A两个不可数名词用and连接不
19,B. has worked 和 C. is working 都是对的.
each A and each B做主语时,谓语动词用单数.
21, A. is
No +不可数名词A and no +不可数名词B 做主语时,谓语动词一样用单数.

【俊狼猎英】团队为您解答.

虽然看起来each和each加起来是复数,但是这儿要用单数
不可数加不可数还是不可数,所以还是要用单数

1,each打头必须用单数
所以选b
2,食物和水都是不可数名词,用单数所以选a
两个不可数名词用and连接用单数
我是英语专业的,希望我能帮助你

each boy是每个男孩,为单数即由each,each……and each……,each……,every……and every……,every……作主语时,谓语动词用单数形式
no food也是同样情况
记住,当and连接的两个单数名词都有every,each,no修饰时,谓语动词用单数形式