1. 下列场景中这些事情能做吗？能做的打"√"，不能做的打"×"。

场景一：You are in the library. (     ) 1. Read story books. (     ) 2. Sing and dance. (     ) 3. Run and jump. (     ) 4. Shout to others. (     ) 5. Keep the room clean.

场景二：You are ill. (     ) 1. See a doctor. (     ) 2. Take the medicine. (     ) 3. Go swimming. (     ) 4. Climb a mountain. (     ) 5. Stay in bed.