we've found (it) is necessary for them to plant trees on the hills in spring

分类: 作业答案 • 2022-01-09 18:03:03

问题描述：

we've found (it) is necessary for them to plant trees on the hills in spring
为什么那里要填it?而不是填 that ,this 或者what?

答

我们发现,春天的时候,他们在山坡上种植树是很有必要的.这里可以用that引导宾语丛句,但也可以省略.（英语就是这么麻烦,we've found （that） it is necessary for them to plant trees on the hills in spring.it 是...