题目

完型填空（共20小题；每小题1.5分，满分30分） 阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。 Fifteen years spent in the field of education has provided me with many treasured moments. One of the most unforgettable   36   when I was teaching second grade 10 years ago. In May I decided to plan something special for the children; a Mother’s Day tea. We had put our   37   together to come up with ideas of how to   38   our mothers. We practiced singing根据中文提示补全对话. A: Are these buses? B: No, they ________. They are ________.