They ______ on the program for almost one week before I joined them.

admin2009-08-15 37

问题 They ______ on the program for almost one week before I joined them.

选项 A、had been working
B、bad worked
C、have been working
D、have worked

答案A

解析根据句意应该选过去完成进行时，表示work on这个动作在 joined以前发牛，而且．我加入以后还在继续，故用过去完成进行时。答案为A。

转载请注明原文地址:https://kaotiyun.com/show/3Ifd777K

公共英语二级笔试

相关试题推荐

随机试题

最新回复(0)