What were you doing when she dropped in—I for a while and_________ some reading.

l as teaching soccer’s basic skills and rules, the introduced textbooks will ______ team spirit and sense of responsibility.

as put forward______ most challenging question for us to answer.—Yes, it really is. I have never heard______ harder one.

No matter how hard it is，the strong－willed mother will never________the hope to find her lost son.

She couldn’t her excitement when she saw him.