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

The light in his room is on now ,so he ______at home The light is on in his room. He must be at home,__the light in his room is on. The light is on in his room .I'm sure he _____ back. The light is on in his room ,I'm sure he ___back A.must be B He ___ be in the room .The light in the room is not on.A.mus -- ( )he be at home now -- Yes,he must.The light is on A.Mus -Where is he?The light in his room is off. -He ____sleeping -The light in his room is still on.Do you know______?-In ord 英语翻译John is American.He is in London now.On his way home,he The light is on in his room.He___back.Awill be Bis Ccan be D 28.---- The light is on.Who is in the room?