问题描述:
The water (is )in the cup.Some people (are) sw
The water (is )in the cup.Some people (are) swimming in the river now.为什么水是不可数名词用is,人们也是不可数名词要用are.
The water (is )in the cup.Some people (are) swimming in the river now.为什么水是不可数名词用is,人们也是不可数名词要用are.
问题解答:
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