作业帮 > 英语 > 作业

一道关于情态动词的英语题: -Where is Mary? -She _ in her classroom.

来源:学生作业帮 编辑:神马作文网作业帮 分类:英语作业 时间:2024/11/10 14:11:31
一道关于情态动词的英语题: -Where is Mary? -She _ in her classroom.
-Where is Mary? -She _ in her classroom.
A. must be B. should be C. can be D. must have been
答案是A.我想知道B为什么不对.
一道关于情态动词的英语题: -Where is Mary? -She _ in her classroom.
B这个选项的意思也是 应该在 ,但是should一般用在祈使句中,命令的语气
比如说You should do your homework quickly.你这句话是一种猜测的语气,should不适用于猜测的语气,