----What do you want to do for vacation?------Imy grandmother.A. visitB. am going to vistC

问题补充：

----What do you want to do for vacation?

------Imy grandmother.

A. visit

B. am going to vist

C. visited

D. visiting

答案：

A. visit

(答案→)B. am going to vist

C. visited

D. visiting

解析：句意：这个假期你打算做什么？我计划去看望我的祖母。Want to do sth.想要做什么，表示将的一个动作，计划或打算通常用be going to do sth.表示。故选B。