Ⅰ.阅读理解
阅读下列短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。
A
Brownie and Spotty were neighbor dogs who met every day to play together.These two loved each other and played together so often that they had worn a path through the grass of the field between their respective houses.
One evening，Brownie’s family noticed that Brownie hadn’t returned home.They went looking for him with no success and by the next week he was still missing.
