既然他们没有回复，我推测他们不感兴趣。

Since they haven't replied, I ___presume they are not interested.

我想您就是新来的经理吧？

You are the new manager, I ___presume?

我们可以推测这个项目会遇到一些延误。

We can ___presume that the project will face some delays.