Themanagerenteredtheofficeandwashappytolearnthatfour-f...

问题详情：

 The manager entered the office and was happy to learn that four-fifths of the tickets ______.

A. was booked    B. had been booked 

C. were booked    D. have been booked

【回答】

B

知识点：过去完成时及其被动式

题型：选择题