the mangaer required that all the employees () at the office before 9:00in the morning

题目

the mangaer required that all the employees () at the office before 9:00in the morning
A) will arrive B )arrive C ) arrived D) have arrived

答案

1.require
1）require sth (of sb)
2）require sb to do sth
3）require doing 主动表被动
4）require that-clause〔虚拟语气：(should)+V原〕
选B