the light is out in her room;she ()to bed.为什么括号中用must have gone呢、.而不用must go?他起床怎么确定他是现在起床的还是过去起床的呢?求讲解

分类: 作业答案 • 2021-12-20 03:29:40

问题描述：

the light is out in her room;she ()to bed.为什么括号中用must have gone呢、.
而不用must go?他起床怎么确定他是现在起床的还是过去起床的呢?求讲解

答