回答如下:
1.
不可数名词用it指代同类同物,用that指代同类异物:
This tea is from China and I bought it yesterday.
This tea is much better than that.
2. that 可以指代不可数名词或可数单数名词,它是用来特指; those指代复数名词,也是用来特指。
追问a long time to come请问这个to come 什么意思 谢谢
追答句子不完整,只能理解成:到来,来到。要根据句子内容或上下文来理解。例如:
The problem will exist for a long time to come. 这一问题将在相当长的时间内存在。