中国作为疆域辽阔 、人口众多、历史悠久的国家，应该对人类有较大的贡献。A、Acountry with a vast

中国作为疆域辽阔 、人口众多、历史悠久的国家，应该对人类有较大的贡献。

A、Acountry with a vast territory, a big population and a long history,China should make greater contributions to humanity.

B、China is a country with a vast territory, a big population and a long history, should make greater contributions to humanity.

C、China has a vast territory, a big population and a long history, and thus makes greater contributions to humanity.

D、As a country,China has not only a vast territory, a big population but also a long history. Therefore,China should make greater contributions to humanity.