The light in his room is on now ,so he ______at home

问题描述:

The light in his room is on now ,so he ______at home
must be
还是
must stay?

must be
这里直接用be动词即可表示他在家这个状态.而用stay的话更强调他在家这个动作.根据前半句的原因来看,这句需要填写的是表状态的,所以用must be