gather

我猜想他们还没卖掉房子。

I ___gather they haven't sold their house yet.

从我所能推断，他们还没有卖掉房子。

From what I can ___gather, they haven't sold their house yet.

据我所知，只会提供清淡的点心。

As far as I can ___gather, there will only be light refreshments available.