-Excuse me, does Mr Smith’s son live here?-He _________ be here, but he has moved.
You'd better learn the new rules by heart.
—Maybe they have decided to trek through the jungle.—Well, I really don’t think it’s a good idea.
—The old man lives alone but he doesn’t feel lonely.—Sometimes he goes to town to see his son..
I ________ let him know it as soon as he ________ back.
There’s only one ticket. __________ you _________ he can go to the cinema.