补全对话。
A: Good morning, Miss Lin.
B: Hi, Liu Xing. 1._______________________?
A: I've just been to the English Corner.
B: Really? That's great! Did you talk with our foreign teacher Mark?
A: 2._________________. But I'm not sure if he understood me.
B: No problem. 3.____________________?
A: He said I needes more practice. But I'm afraid of making mistakes when I speak.
B: 4.__________________! Everyone makes mistakes at the beginning. You should believe in yourself.
A: But do you think they like to talk with us beginners?
B: Yes, unless they are busy.
A: Well, could you please help me with my oral English?
B: 5._______________. You can come to me at any time.
