He can't be in the classroom,I saw him go home a minute ago 我想问一下_英语解答

He can't be in the classroom,I saw him go home a minute ago 我想问一下问什么不能用mustn't而用can't?

人气：223 ℃　时间：2020-01-29 08:57:35

解答

因为表示英语中“不可能”不能用mustn't而要用can't,mustn't是不允许的意思.