A:Hi,Lin Tao!I heard you won first place in the speech competition（比赛）about National Day.Congratulations!
B:Thank you!
A:（1）______.Why did you take part in the speech competition?
B:Yeah,I was shy years ago.But with the encouragement of my mother,I have changed a lot,so I took part in it.
A:Please tell me more about your speech.（2）______?
B:I talked about the great changes in our country.
A:How could you do such a good job?
B:（3）______.In order to make it good,I have practiced it hundreds of times.
A:Great!Oh,we are also preparing an activity for National Day these days.
B:（4）______?
A:A big singing competition.
B:（5）______?
A:Yes.I am good at singing and I have prepared a lot for it.I\’m sure that I can win the first prize.
B:Good luck!
A:Thank you.