I ______ on a maths problem when he telephoned me early this morning.

admin2012-05-08 77

问题 I ______ on a maths problem when he telephoned me early this morning.

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

答案B

解析

转载请注明原文地址:https://kaotiyun.com/show/hWwd777K

公共英语二级笔试

相关试题推荐

随机试题

最新回复(0)