—Well, that was really a good meal. I _______ you were a really good cook.

—Thank you.

A．didn’t know

B．don’t know

C．haven’t know

D．hadn’t known

2010年9月25日，“和平使命—2010”联合反恐军事演习在哈萨克斯坦圆满落幕。这次演习是      框架内第七次联合军演

A．联合国

B．北约

C．上海合作组织

D．欧盟