问题补充：
I want to go shopping. ?
A. How are you
B. What about you
C. Can I help you
D. Will you
答案：
A. How are you
(答案→)B. What about you
C. Can I help you
D. Will you
解析：How are you你好吗；What about you你呢； Can I help you能帮您什么忙吗；Will you好不好。句意：我想去购物。根据上文可知选B最符合语境。
