If you _____ leave early on weekdays, do it quietly. The other classmates are also dying to have an early leave.

—________ I watch TV now,Mom?—No.It’s too late ,and you ______ go to bed.

You’d better ________ right after supper.

"Those responsible for the accident      be punished while those contributing to solving the problems be rewarded," promised the official then and there.

－Two hundred yuan for such a T-shirt! You ______ be joking!－I’m not joking . It’s made of silk.