Book3 Unit2复习题.单项选择（共15小题；每小题1分，满分15分）从每小题的A. B. C. D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该选项涂黑。1. Do you happen to see _ black and _ white cat? Is she missing? I told you to take care of her. A. the ; the B. the ; / C. a ; / D. a ; the 2. She _ down her book and _ in bed.A. lay; laid B. laid; lay C. lay; lay D. laid; laid3. Great changes _ in our school in the past 10 years.A took place
