问一道英语题!（简单,快来瞧瞧!）

问一道英语题!（简单,快来瞧瞧!）
补全对话：
A：Hi,WangTao!Let's go and ____ basketball.
B:____,I can't.
A：What are you ____now?
B:I'm doing my homework.Go and ____ Zhang Hong.
A：Thank you.____is he?
B:He is ____home.
A：Is Zhang Hong____?
C:Yes,Come____,please.Hi,Li Bin.
A：Zhang Hong.____you play basketball____us?
B:Certainly!Let'go.