--- Another cup of coffee? ---No. thanks. I _____ be off. Marry is waiting for me.

They can hardly move at all, _____________?

 —___________ he have to wear his school uniform every day?—No, he ______________.

—         you drive a car? —No, I can' t.

---Fifty dollars for such a T-shirt! You _______ be joking!---I’m serious．It’s made of silk.