．—Let’s throw a surprise party for mom’s  50th birthday.

—That’s a good idea. We_________several of her friends.

A．invite

B．had invited

C．are inviting

D．will invite

推进政治体制改革，必须坚持（）的有机统一。

A.党的领导

B.人民当家作主

C.依法治国

D.同经济体制改革

E.同世界政治民主化趋势