【单选题】—I can’t stop smoking, doctor. — For your health, I’m afraid you________.
【单选题】You can't hear what I'm saying ______ you stop talking.
【单选题】Can you play tennis ? --_______
【单选题】You can’t hear what I’m saying_______you stop talking.
【多选题】经济学里的供给应该满足以下哪些条件?( )