下列运算中,计算正确的是( )
A:3x2+2x2=5x4
B:(-x2)3=-x6
C:(2x2y)2=2x4y2
D:(x+y2)2=x2+y4
直线(2+λ)x+(λ﹣1)y﹣2λ﹣1=0经过的定点坐标为____ .
He leaves school ________4:30. He will ________ at about 5:00.