----what do you think of the Chinese language today?

----Quite popular. It______ in communicating with other countries. More and more foreign friends are learning Chinese.

A．plays an important role

B．is playing an important role

C．has played an important role

D．is being played an important role

17—18世纪，欧美主要国家发生了社会巨变，这一巨变主要是指（）

A.兴起了文艺复兴运动和开辟了新航路

B.开始了疯狂的殖民扩张活动

C.发生了资产阶级革命，建立了资本主义制度

D.完成了第一次工业革命