阅读下面短文，掌握其大意，然后从每题所给的A、B、C、D四个选项中选出最佳选项。

    My name is Jack, and my brother is David. This is a 1 of our room. You can 2a desk, two chairs, a sofa and a bed in it. A computer is on the desk. It's not David's. It's 3. My schoolbag is on the 4, too. Some books, a pencil box and a dictionary 5 in it. I have （有） a watch. It's on the chair. I am 6, but David is not. His books are everywhere. They are on the bed, on the sofa7under the chair. His model plane is on the chair. Look! What is under the sofa？Oh, it's8blue jacket. And he likes it.9 is his notebook？ He can't 10it. Can you help him？

    His telephone number is 783﹣7893.Please call him.