Having friends in the same class is really helpful because we were able to study together.它的同义句是什么
问题描述：
Having friends in the same class is really helpful because we were able to study together.
它的同义句是什么
答
It's very helpful to have friends in the same class because we were able to study together.
答
Having friends in the same class is really helpful because we were able to study together too
答
It's very helpful to have friends in the same class because we were able to study together
主语过长时可以用it's..的形式主语代替,是这个意思吗