这个房间有股霉味,一定是好久没人住了。
A.The room smells of stale air. It must be vacant for a long time. B.The room smells of stale air. It must have been vacant for a long time. C.The room smells stale air. It must be vacant for a long time.正确答案B
这个房间有股霉味,一定是好久没人住了。
A.The room smells of stale air. It must be vacant for a long time. B.The room smells of stale air. It must have been vacant for a long time. C.The room smells stale air. It must be vacant for a long time.正确答案B