问题补充：
补全对话（共5小题，计5分）
A: How long have you been playing basketball?
B: E【小题1】A.
A: How long have you been playing basketball today?
B: B【小题2】F.
A: D【小题3】.
B: Yes, I do.
A: Is this your first basketball marathon?
B: 【小题4】. 【小题5】.
A: I don’t like playing basketball. I like reading.
A. For five hours.
B. Do you play basketball every day?
C. Five hours ago.
D. What about you?
E. Since I was nine years old.
F. Yes, it is.
答案：
解析：【小题1】回答how long提问的句型，一般用for和since引导的时间来回答，根据问句的意思“你打篮球多长时间了？”可知问的是自从打篮球有多长时间了，所以本题选E。
【小题2】通过上句的how long和today可知，应该用for来回答，所以本题应该选A。
【小题3】根据答语Yes，I do，可知，问句应该是一般疑问句，只有B，所以本题选B。
【小题4】根据 Is this your first basketball marathon?可知，这是一个一般疑问句，需要用yes或No来回答，选项中只有F符合，所以本题选F。
【小题5】根据答语I don’t like playing basketball. I like reading.可知，B是问对方是否喜欢篮球，所以本题选D。
