   neutral   It seems to be from chapter six to chapter ten.     sadness   Well. I think I'm going to fail my chemistry exam.  
    neutral   Why are you so pessimistic?     sadness   I'm not being pessimistic. I'm being realistic. My chemistry is so bad.  
    neutral   I believe you can pass the exam with good preparation. Don't lose your heart.     happiness   
 Thank you for telling me this! 
 Exhaust all that, Miao Li.That's really nice of... 