听力原文：（A)The man is mopping the floor.（B)The man is pulling the cart with cleaning prod

听力原文：（A) The repair work has finished.（B) The man is measuring the wall.（C) The man is

听力原文：（A) The man is paying the woman.（B) The man is writing down some information.（C)

听力原文：（A) A man is singing into the microphone.（B) A man is touching the strings.（C) A

听力原文：（A) The man is examining something on the wall.（B) The man is posting a message.（

听力原文：（A)The man is doing maintenance outside.（B)The man is writing a letter.（C)The man

听力原文：（A)The man is posing for a picture.（B)The man is taping the scenery.（C)The man is