使用“手绘工具”在页面中绘制一根水平直线或垂直直线，需要配合（）键。
A.Shift
B.Ctrl
C.Alt
D.Tab
参考答案：B
粘流态
not to miss the flight at 15:20, the manager set out for the airport in a hurry.[ ]
A. Reminding
B. To remind
C. Reminded
D. Having reminded
