_MrWangˊsfamilyarenotathome.Wherearethey?  -TheyareinCa...

问题详情：

_Mr Wangˊs family are not at home. Where are they?

   -They are in Canada_______ vacation now.

     A. in            B. on       C.  with     D. at

【回答】

B

知识点：介词和介词短语

题型：选择题