A:32
B:±1
C:0
D:12
—Oh, yes. “water and air is” should be “water and air are”.
“红灯停,绿灯行,黄灯亮了等一等”是基本的交通规则.下列有关叙述错误的是( )
—It's so late. Why not write the report tomorrow?—But I don't know _______ I can do it if not now.