⑴How much is it? A. 请关门。
⑵Is this your pencil? B. 请开门。
⑶How much are they? C. 它多少钱?
⑷Close the door, please. D. 它们多少钱?
⑸Open the door, please. E. 这是你的铅笔吗?
⑹Are these your pencils? F. 这些是你的铅笔吗?