There’s only ten minutes to go. We can’t wait any more—- ______, we should start at once.

Whose is this blue sweater?—It ___ be Hong Tao’s. His is white.

Is Tom still in New York or already back at home?—I’m not sure _________. I’ll call to make sure.

Do you know the name of the cat ______ is lying on the ground? –Of course, it’s my pet. Its name is Mimi.

He has______ unusual chair. It is like ________ “h”.