不能做花门用花卉的是（）
A.紫藤
B.叶子花
C.矮牵牛
D.紫薇
参考答案：D
印版的压印形式有（）
A、圆压圆
B、圆压平
C、扇压圆
D、平压平
—I wonder why Mr. Green looks quiet in class. —I'm not sure, but he（）a small accident driving here.
A. could have
B. might have
C. might have had
D. must have had
