A. It’s very kind of you
B. It doesn’t matter
C. Not at all
D. You are welcome
A.等待1000秒后,再弹出一个对话框
B.等待1秒钟后弹出一个对话框
C.每隔一秒钟弹出一个对话框
D.语句报错,语法有问题
A.You are welcome
B.Nice to meet you
C.Go on, please
D.It’s over there
A. Well, it’s no big deal
B. No, it’s all right
C. You are welcome
D. You are so careless
A.congratulations
B.not at all
C.you are welcome
D.that's night
B、Never mind
C、You’re welcome
D、It’s my pleasure