一般道路行车中，遇同向行驶车辆时，应合理控制速度，保持安全距离跟车行驶，尽量（）。
A、快速超车
B、不超车
C、避免超车
参考答案：B, C
I would have grabbed the ball if I closer to it.
A．was
B．were
C．would be
D．had been
-- does your sister practice singing English songs?
----Twice a week.
A．How soon
B．How long
C．How far
D．How often
