阅读理解。 Li Ming: Excuse me, Wu Dong. Is that your dog? Wu Dong: Let me have a look. Oh, no, it is yellow. I think it's Wang Hong's. My dog is black. Li Ming: Wang Hong. Look at the dog under the tree. Is it your dog? Wang Hong: No, it isn't. I don't have a dog. I think it's Ma Jun's. Li Ming: Ma Jun? Wang Hong: Yes, he's my friend. Look! He's there. Let's go and ask him. Li Ming: OK! Let's go. Wang Hong: Hi, Ma Jun! Is that your dog? Ma Jun: Oh, yes, it is. Wu Dong: It's a nice dog! Ma Jun: Thank you. 1. The dog is ______. [     ] A. Wu Dong's B. Li Ming's C. Wang Hong's D. Ma Jun's 2. Wang Hong has ______. [     ] A. a dog B. no dog C. two dogs D. a white dog 3. Ma Jun is ______. [     ] A. Wu Dong and Wang Hong's friend. B. Wu Dong's friend. C. Wang Hong's friend. D. Li Ming's friend. 4. Where is Ma Jun's dog? [     ] A. In the room. B. Under the tree. C. On the sofa. D. We don't know. 5. Which of the following is right according to this dialogue? (根据对话，哪一项是正确的？) [     ] A. The four boys have no dogs. B. Wang Hong's dog is lost. C. Ma Jun's dog is yellow. D. Ma Jun has many dogs.