. The train _____ for twenty minutes.

He used to_______very late.But now he is used to____early.

It has been announced that candidates(应考者) ________ remain in their seats until all the papers have been collected.

Tom, you go to the station to pickup your father and I will cook the dinner.— ___________ I will go at once.

Rather than _______ on a crowded bus, I always prefer _____ an electric bicycle