Students ___________ remain in their seats until all the papers have been collected.

—Tom often drives carelessly.—Tell him he ________ answer for it if he goes on behaving like that. 

If you ________ carry with you the belief that whatever you do is right, it’s none of my business.

I went there in 1984, and that was the merely occasion when I ________ the journey in exactly two days.

Mike ______have stolen the money from the bank,______he appeared to be rich overnight.