重点讲解：
1. sell out
（演出、体育赛事等的门票）销售一空，卖光；
eg. The gril tell me the flim tickes had sell out.
那个女孩告诉我说电影票已经卖完了。
eg. The match was completely sold out.
比赛的票已售清。
2. to tell the truth
说实在的；坦白说；
eg. To tell the truth, I don't think you're right.
说实话，我认为你不对。
eg. To tell the truth,I fall asleep in the middle.
老实说，我在中间睡著了。
3. be into
对…很感兴趣；极喜欢；
eg. She is into music.
她喜欢音乐。
eg. Don't be into computer games, it's bad for you.
别迷上电子游戏，对你是有害的。
