根据对话内容，在空白处填写适当的话语（话语可能是一个句子，也可能是一个短语或一个词），使对话完整。
Jan: I don't want to learn Chinese any longer!I can't learn it well!
Beth: Don't 1._________. Keep trying. Learning a language isn't easy. It takes a lot of time and effort.
Jan: I can't do it．
Beth: Remember the old saying, "Time on task!" Work hard at it, and 2._________.
Jan: I have difficulty with the four tones（音调）. No matter how hard I try, my pronunciation is poor. My Chinese sounds awful.
Beth: "Try ,try and never say die." Listen to simple songs and watch Chinese-languagemovies. Read easy anf interesting Chinese stories that have tapes or CDs.You'll learn to.3._____Chinese. That's a promise (希望).
Jan: 4. _________
Beth: "Try ,try and never say die." Listen to simple songs and watch Chinese-languagemovies.Beth: Of course. We're friends, and that's what friends are for. Don't worry.Beth: You are welcome.