完形填空（每小题2分，共20分） 根据短文内容，从A、B、C、D四个选项中选出一个能正确填入相应空格的最佳答案，并把答题卡上对应题目的答案标号涂黑。 What is friendship? Different people have different opinions. In my opinion, friendship is simply a ray of sunshine. Let me tell you a true story about friendship. It was a rainy afternoon, Xiao Ling, my best friend, and I wereduty. We had to the desks and chairs, wash the doors and windows, and sweep the school floor. We worked hardit was getting dark. After we finished our work, we realized that we hadn’t brought our umbrellas to schoolit wasn’t raining then. All of our classmates,Xiao Ling and me, were taken home by their parents.noticed us and we felt lonely and afraid. We waited and waited until Xiao Ling’s grandma came. She asked Xiao Ling to go with her. But Xiao Lingdo. She said to her grandma, “I can’t leave my friend alone.” Xiao Ling’s grandma said, “well, let’s go first. Maybe her parents will come soon.” “Oh, no, her parents work in a faraway place. They won’t come. I can’t leave without taking her,” Xiao Ling insisted（坚持）. I was sothat tears came into my eyes. At last we shared the same umbrella in the rain. When I got home, the rain stopped. A ray of colorfulcame out. I’d heard the famous saying “A friend inis a friend indeed” before, but not until this time did I understand its real meaning.