---Honey, stay home before I return. ---I _______, mum. 

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

—Must I pay for the bill now, boss?—No, you __________ pay for it after the meal.

---Shall we meet at the station at 7 am?---In fact, we _______. The train _______ until 9 a. m.

-I walk such a long way on such a hot day .-Oh, dear ! You____ be tired and thirsty.  Sit down and have a drink.

--- Can we leave the classroom now?-- No, you ______. You ______ to leave until the bell rings.

---Could I have some snacks between meals, mum?---No, you __________.

---I want to know if I can smoke here?---No, you _________. Could you see the sign “NO SMOKING” there? 

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

-- Could I invite my friends to my birthday party?   -- Sorry, you _________.

--______ you leave now?---Yes, because I’m meeting my aunt at 7:00 this evening.

—Mr. Wang, must I come again to clean the window on Sunday morning?—No, you _____ . I have asked others to do it.

—Must I go there right now, mum?—No, you ____. You can go there tomorrow.

The police still haven’t found her, but they’re doing all they      .

—Look! The man at the gate ______ be our headmaster. He is always standing there every morning.—No, it ______be him. He is holding a meeting in the office now.

---Must I work out the problem right now?---Yes, you _______. It’s very serious. 

—Bill, can I use your dictionary? I left mine at home.—Of course you________. Glad to help you.

— Must we get to the airport before 8 o’clock?— No, you _____. The plane takes off at 12 o’clock.

In order to improve your spoken English, you ________ be afraid of losing face. 

—Excuse me. May I sit here? —I’m afraid you _________. My daughter will come back soon.