一个物体做变速直线运动，测出它在10s内的平均速度是2.5m/s，那么，关于它在前5s内通过的路程，下列说法正确的是（　　）

A．等于12.5m

B．大于12.5m

C．小于12.5m

D．无法确定

It was difficult to tell whether he could __________　our team and work for us for that situation?

A．ask for

B．call for

C．wish for

D．stand for