—Do you want to play basketball after school Jack?—. I have to practice my English.A. Yes

问题补充：

—Do you want to play basketball after school, Jack?

—. I have to practice my English.

A. Yes, I do

B. Let’s go

C. Sounds great

D. Sorry, I’m busy

答案：

A. Yes, I do

B. Let’s go

C. Sounds great

(答案→)D. Sorry, I’m busy

解析：Yes, I do是的，我……；Let’s go让我们去吧； Sounds great听起来不错；Sorry, I’m busy抱歉，我很忙。句意：杰克，放学后你想去打篮球吗？根据下文，我必须得练习我的英语。可知前文为否定回应。故选D。