完形填空(英文)

摘要

<正> A dog has two (1) that make it one of the easiest animals (2).Its intelligence helps it to learn (3) and to understand what you(4). Its desire to (5) makes it (6) to learn and obey. Before learning about specific commands, you (7) know somegeneral (8) about training a dog. First, always be firm. (9) firmdoes not mean being cruel to your dog. It means (10) sure your dog