幸好我们早早订了票。

___It's ___a ___good ___thing that we booked our tickets early.

我认为你父母要来是件好事。

I think ___it's ___a ___good ___thing that your parents are going to come.

幸好我们在旅行前查看了天气预报。

___It's ___a ___good ___thing that we checked the weather forecast before the trip.