完形填空（本题有10小题，每小题1分；满分10分）阅读下面短文，掌握大意，然后从A、B、C、D四个选项中选出最佳选项。 Dogs are people’s friends. They will do anything their masters(主人)ask them to do and they do their duty（职责）very well. Curly is my black dog. He is big and strong. He is__ to carry me on his back. He likes running and playing with me. He likes tomy father around in the fields, too. One day my father took off（脱下） his coat, put it on the ground a big tree and said to Curly, “ my coat.” Curly sat down on the coat. Then my father remembered he had to dinner for the family. he went home and forgot all about his coat and dog. Late in the evening I my dog and looked for him everywhere in the garden.I called，“Curly, Curly！” But Curly did not answer. Soon my father wanted something in his coat pocket(口袋). Suddenly he remembered ___ he did. Quickly he went back to the big tree. What do you think he saw? Curly was __ sitting on the coat! He was afraid someone would take it.