You have to wear a helmet and a life jacket for protection, just ____ you fall into the water.
— Did he notice you enter the room? — I don’t think so. He _____ to the radio with his eyes shut.
— Tom, did Mr. Li join you in your discussion? — No, he _____, but he happened to have fallen ill.
— What do you think of this kind of TV set, which _____ in Shanghai? — Well, I don’t care such things.
I didn’t like Aunt Lucy, who _____ without warning and bringing us presents.
— I ____ to a party, but I’ve got nothing to wear. — Why don’t you have a dress made for the party?