-----Oh, Tom, what did you do this summer vacation?

-----Guess what? I had _____ great fun in _______ show performance “the voice of China”.

A．a, the

B．the, the

C．/,a

D．/, the

国共两党第一次合作时期的革命运动之所以被称为“大革命”，主要是因为（）

A.得到苏俄帮助

B.领导阶级先进

C.群众基础广泛

D.革命成果丰富