Point your arm. A. in B. to C. on
当别人对你说再见时,你说:A.See you! B.Hello!
你想向别人介绍自己,你说:A.I’m … B.You are…
当别人对你说下午好,你说:A.Thank you B.Good afternoon.
向别人介绍朋友时,你说:A.This is …….. B.See my friend.
当别人对你说见到你很高兴,你说:A.I’m fine. B.Nice to meet you, too.