联系上下文，补全对话。
Danny is going to teach Li Ming to skate.
" 1 " says Danny.
"I think I can stand up." says Li Ming.
"Yes! Look, Danny! 2 "
"Good!" says Danny. Danny stands up, too.
" 3 " asks Danny.
"I think I can." says Li Ming.
"Come on, Danny! "
"Oops!" says Danny. He falls down again.
" 4 " asks Danny.
"I think I can." says Li Ming. Li Ming skates backwards slowly.
" 5 " says Danny.
A. Very good, Li Ming!
B. Can you skate forwards?
C. I'm standing.
D. Can you stand up on the ice?
E. Can you skate backwards?
