题干
The living room is clean and tidy, with a dining table already ______ for a meal to be cooked.
A：laid
B：laying
C：to lay
D：being laid
答案(点此获取答案解析）
A
A：laid
B：laying
C：to lay
D：being laid
个长度单位长度为半径的圆交数轴于B、C两点，那么B、C两点表示的数分别是___________。
