11. and saw other classmates all didn't put up their hand .
12. I put up my head down too.
13. you wouldn't put on the "Rew" .
14. you only put on "read again".
15. only put on the "play" .
16. Today, let's talk about putting up your .
17. no one actively put up own hand to answer teacher's question .
18. but why didn't we put our hand.
19. always didn't put up .
20. and saw other classmates, all didn't put up their hand .