the old man is sitting in a chair,-----pipe in ----mouth.请填入合适的定冠词和不定冠词或不填为什么?

( )is the old man? ( )is the old man? Who is the old man? the old man is ___for the beach the old man is（ ninety years old?） 提问 （）（ ）is the old man The old man in the car is an old teacher. Is the old man (空格) grandfather? The old man is ___ ill .( terrible) Look!The old man is e____. Old man is the twice of Is the old man a____or dead? The young man is behind the old man. old how is the man old连词成句 The old man is too old to word.(同义句) The old man is an ice-cream man.是什么意思. The old man is healthy（改为同义句） The old man is ( ) （ ) ( ). what does the old man doing?和what is the old man doing?哪句正确? The man is very old.His hair is ______.