Expressing future plans and arrangements

I .... some friends after class tonight.

The train ..... in five minutes.

Could you ring me back later? - I ....... 

The minister confirmed today that he ...... to retire from politics at the end of the year.

Our train.... at 4:47.

My dad is retiring/will be retiring at the end of this year.

A: What are you doing tomorrow? B: I'm not sure. I'm probably ...... the match.

The train is going to leave very soon / is about to leave.

The new exhibition ...... next month.

My flight is due to arrive / arrives at 6.00.