The radar sets______ for quite a long time without any trouble.

admin2014-01-01 36

问题 The radar sets______ for quite a long time without any trouble.

选项 A、have been running
B、have been run
C、have run
D、were running

答案A

解析

转载请注明原文地址:https://kaotiyun.com/show/OUFC777K

英语

相关试题推荐

随机试题

最新回复(0)