1.do you have p___ for vacation?2.does your friend ofen call you ___ canada,mary
问题描述：
1.do you have p___ for vacation?2.does your friend ofen call you ___ canada,mary
怎么确定单复数？
答
1.Do you have (plans) for vacation?
2.Does your friend ofen call you (from) Canada,Mary?
have a plan/plans有计划（plan为单数时前面应该有a或the)
from+地点 来自……