—Must I come back before supper, mum?—No, you        .

— I’ve prepared all kinds of food for the picnic.—Do you mean we_____ bring anything with us?

If you work hard and finish it this week, you _______ have Monday free next week.

Tom________tell the truth to his boss because he didn't want to make trouble.

—Why, my new computer is rubbish! Five hours has passed and it still hasn’t finished the downloading. —Don’t worry. You know, sometimes the Internet ________ be very slow.