Dogs have feelings just like you and me. They cry when they’re  ______, and they smile when they’re happy. It’s true! Dogs have lots of  _____of telling their feelings without using words. You just need to ________their body language. For example, what doesit ________when your dog wags his tail (摇尾巴)? He’s telling you that he’s happy, or that he is    _______something and he wants it. Sometimes you may see your dog tucks (将...缩拢并塞进 ...)his tail between his ________. It means that he’s probably afraid, or not feeling _______. Also, it isn’t hot outside, but does your dog look like he’s panting (喘气)? Don’t worry— he’s fine! It maybe    ________, but that’s how dogs smile when they relax. Here is a (n) _____. You can try it at home. Ask your  ______, “Do you want to go for a walk?” Watch his body language closely, and you’ll probably see him answer，“Yes!”