根据对话内容，在空格中填写一个句子，使对话完整、正确。
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 needed more practice. But 4________________________.
B: Take it easy! 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 help me with my oral English?
B: 5_______________________. You can come to me at any time.