do you do to celebrate Christmas?— We have a party and give presents to each other.A. How

问题补充：

do you do to celebrate Christmas?

— We have a party and give presents to each other.

A. How

B. Where

C. What

D. When

答案：

A. How

B. Where

(答案→)C. What

D. When

解析：句意：——你们做些什么来庆祝圣诞节？——我们举行一个聚会，互相送礼物。A. How如何；B. Where哪里；C. What什么； D. When何时。此处作为动词do的宾语，故用疑问词what。故选C。