— do you do on Halloween?— We play games and have lots of fun.A. HowB. WhereC. WhatD. Wh

问题补充：

— do you do on Halloween?

— We play games and have lots of fun.

A. How

B. Where

C. What

D. When

答案：

A. How

B. Where

(答案→)C. What

D. When

解析：句意：万圣节你们做什么呢？我们做游戏乐趣很多。本句指的是在万圣节做什么活动，即用what表示，故选C。