_MrWangˊsfamilyarenotathome.Wherearethey?  -TheyareinCa...

問題詳情：

_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

知識點：介詞和介詞短語

題型：選擇題