19/13，1，13/19，10/22，( )
A．7/24
B．7/25
C．5/26
D．7/26
参考答案：B
The children, ________ had played the whole day long, were worn out.
A．all of what
B．all of which
C．all of them
D．all of whom
绘制圆有几中不同方法？（）
A、1
B、3
C、4
D、7
E、以上都不对
