A: why are you away late? 
D:Sorry, I get up late. 
A: No saddle here( show sigh). 
D: I'm so sorry teacher. 
A: Minus ten. 
D: OH NO . 
A: 10 point off for handing quiz in late. 
A:Every body listen to me ! I talk about strong acid and base. A,B,C:(หยิบของ) 
A: What are you doing Quickly Quickly. 
 Bla Bla Bla
C: ( Snoring sound ) 
A: start ( ตบโต็ะหรือตบมือก็ได้) 
C: what ? ( ตื่นขึ้นมาเเบบตกใจ ) Laboratory Lab 
B: You must conduct yourself in a responsive manner at all times in the laboratory, Be alert and proceed with cuation at all times in the laboratory. Notify the feather immediately of any unsafe conditions you of you understand a direct of lak.
 B: ( Say to A ) Please bring equipment. 
C: Can do you a fever. 
B: ( Say to C ) Please bring chemical. 
A: Be careful corrosive chemical. ( show sigh) 
( A playing with C suddenly A get dirty by chemical. 
C: You must take a shower. (Show sigh). 
C:( Say to teacher) May I take my friends to clinic ? 
A: Yes , Class end. 
C: Good bye Teather.