通读下面的对话，然后根据上下文补全对话内容。
A: Good afternoon, Miller!What are you doing? 【小题1】Sure/Certainly/Of course/No problem ?
B: I’m drawing a horse.
A: A horse? Can you let me have a look?
B: Yes, I do. 【小题2】Why . Here you are.
A: Oh, the horse looks very nice. Do you often draw in your free time?
B: How often do you have an art lesson? 【小题3】 .
A: Do you like drawing?
B: Yes. I like drawing very much.
A: 【小题4】 ?
B: Because it’s very interesting. And my art teacher is very kind to me.
A: 【小题5】 ?
B: I have an art lesson once a week.
网友回答
解析：
【小题1】下句的含义为我正在画马，所以本句的含义为你正在做什么，故本句空格处填What are you doing?
【小题2】上句的含义为能够让我来看一看吗，后句的含义为给你，所以本句的含义为当然可以，故本句空格处可以填Sure/Certainly/Of course/No problem
【小题3】上句的含义为你经常在空闲的时间画画吗，为一般疑问句，所以本句的含义可以为是的，我经常在空闲的时间画画，故本句空格处可以填Yes, I do.
【小题4】下句的含义为因为画画是有趣的，所以本句的含义为为什么你喜欢画画，故本句空格处填Why。
【小题5】下句的含义为我每周一次上美术课，所以本句的含义为你多久一次上美术课，故本句空格处填How often do you have an art lesson?