第一部分：阅读理解（共20小题；每小题2分，满分40 分）
第一节（共15小题；每小题2分，满分30分）
阅读下面短文，从每题所给的四个选项A、B、C和D中选出最佳选项，并在答题卡上将该项涂黑。
A
We have two dogs and offer them good food and a comfortable bed. However, they always try to run away. One day as I was walking them along the river, Cady broke away from me. I called for her to return, but she didn’t. I got unhappy and didn’t run after her.
