---Must we leave the classroom now?---No, you _____. You _____ leave after the bell rings.

---Must I go to the gym three times a week? ---No, you ______. Twice a week is OK.

—Is that man Mr Hu?—That ______ be Mr Hu. Because he has gone to Japan with his wife.

— Mary looks hot and dry. — So ________ you if you had a high fever.

---____, sir, how can I get to the nearest bank?-- You can ________ a No 2 bus at the station..