_______ is the train station from the school? — About twenty-minute bike ride.

It’s ______ today. I think it’s going to ______.

The man in a black suit _______ be our youth worker.— I’m sure it _______ be him. I saw him in the laboratory building some minutes ago.

I had just started back for the house to change my clothes _____I heard my name called.

________ you do, it’s useful to learn English.[ ]