if your call is not answered within two minutes, you ___ to hang _英语解答

if your call is not answered within two minutes, you ___ to hang up and dial again.
A would be advisedB are advised
the answer is B,why not chose A?

人气：305 ℃　时间：2020-06-10 15:53:21

解答

这里不用虚拟语气,只是对将来来情况的假设,事情完全有可能发生.所以不选A.
选择B,是因为别人现在就建议你、给出你建议------即你被建议,如果将来你的电话没有被回答你应该咋办