第一部分：阅读理解 （共两节，满分40分）
第一节：（共15小题；每小题2分，满分30分）
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
A farmer had a cow. He took very good care of this cow and one day when it was ill, he was very worried. He telephoned the vet.
“What’s the problem?” The vet asked him when he arrived.
