2．He placed a fixed sun at the center of the solar system with the planets going round it and only the moon still going round the earth. [信息提取]　with＋宾语＋宾补在句中作状语。宾补可 以是doing，to do，done，adj.，n.，adv.等。 [例句仿写]　随着经济的快速发展，我们国家将在国际 事务中发挥更积极的作用。 ________ ________ ________ __________ ________，our country will play a more active role in international affairs.

With the economy developing quickly