hehe...:) :) you are right completely. for the sake of your rest, in this page, I won't ask you any professional questions,:victory: ;P  just relax yourself in this page. now, I will show u a joke: 
 
TOM'S EXCUSE  
 
Teacher: Tom, why are you late for school every day?  
Tom: Every time I come to the corner, a sign says, "School-Go Slow"("学校-减速“) |