根据所给提示填空。 1. If you're s_____________ and you know it, sit and cry. 2. If you're h_____________ and you know it, fan your face. 3. If you're t_____________ and you know it, go to sleep. 4. If you're c_____________ and you know it, stamp your feet. 5. If you're h_____________ and you know it, turn on the fan (电扇).