If someone invites you to go to his party, but you have no time, what should you not say?__________

A．Sorry, I can’t. I have to study for a test.

B．Sorry, I’m visiting my aunt.

C．I’d love to ,but I have no time.

D．No, thanks.

魏晋南北朝时期，江南经济发展的表现有

①粮食产量大幅增加 ②出现著名的造纸中心

③丝织技术迅速提高 ④商品经济比北方活跃

A．①

B．①③

C．①②③

D．①②③④