----Must I finish the work today, Mom?----No, you _______________. You can finish it tomorrow.

You'd better ____ football in the street.

—You needn’t take an umbrella.It isn’t going to rain.—Well，I don’t know.It________do.                             

The weather in the south is generally warm, but it________ be very cold sometimes.

－It’s Sunday today, so you        get up so early.－Yes, I can have a good rest.