do you know if the man -by the door is mr.smith?sure.we have know_英语解答

do you know if the man -by the door is mr.smith?sure.we have known each other for a long time.
为何选B
A stand B standing C stood D stands

人气：143 ℃　时间：2020-03-26 11:22:18

解答

句意：你知道那位正站在门边上的男人是不是史密斯先生?
当然,我们很了解彼此
正站在：正在进行时,用standing