OurheadmasterissaidtohavearrivedbackfromCanadawherehe

问题详情：

 Our headmaster is said to have arrived back from Canada where he ________ some famous middle schools.

   A. would visit             B. had visited        C. is visiting              D has visited

【回答】

B

知识点：过去完成时及其被动式

题型：选择题