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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?
人气:164 ℃ 时间:2020-04-23 05:17:10
解答
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...
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