His right leg was hurt badly. The doctors ___________.
-- Excuse me, sir, smoking in the gas station. -- Oh, I'm really sorry.A. doesn't allow B. isn't allowed C. aren't allowed
-- The boy can speak both English and Japanese ______ he is only ten. -- Wow, what a clever boy! A. if B. because C. though
---Nick, would you mind out of the bathroom? --- Sorry. I won't be long.A. come B. to come C. coming
-- does your cousin go to the gym? -- Twice a week.A. How long B. How often C. How soon
-- Is that girl Susan?-- It ______ be her. She left for Beijing yesterday.A. needn't B. can't C. mustn't