The light is on.My mother___ be home(can,may,must,have to,need用适当形式填空)

问题描述:

The light is on.My mother___ be home(can,may,must,have to,need用适当形式填空)

已经有I

must 肯定猜测

Must.全句意思:灯还开着,我妈一定在家.must表示肯定推测