问题
补全对话，情景问答
看图完成对话。
A: Is this Yao Ming?
B: Yes, you are right. He likes playing basketball.
A: How long 1 he been a basketball player?
B: He has been 2 it 3 he was about 9 years old.
A: How long did he 4 basketball a day?
B: He played it 5 about five hours a day.
1．__________2．__________3.__________
4．__________5．__________
答案
l. has 2. playing 3. since 4. play 5. for