—Jack, _____ you behave yourself? You're no longer a kid．—Sorry, Daddy．It won't happen again．

The new supermarket announced that the first to purchase goods on the opening day_______ get a big prize.

--- Where are we to hold the conversation? --- We’ll go to a quiet place and no one _____ disturb us.

 What's wrong with your car? - Well, as you know, cars usually_______ start in winter.

—It looks as if it’s going to rain, but I’m not sure whether the windows are shut in my apartment.—You         as well go back to have a look.