today is father’s day.my mother()

问题描述:

today is father’s day.my mother()
Today is father’s day.My mother ( ) a special dinner for my grandpa now.
a.prepare b.prepared c.is preparing d.will prepare

C
意思是:今天是父亲节,妈妈正在为我爷爷准备一顿特殊的晚餐
题中有个now,可见是正在做的事,所以选C:is preparing