—Lucy, what have you learnt from this history class?
—Paper __________first __________about 2,000 years ago in China.
A. is; invented B. was; invented
C. is; inventing D. was; inventing
B
解析 句意：——露西，从这节历史课中你学到了什么？——纸是大约2000年前在中国最早发明的。A. is; invented被发明，一般现在时态被动语态；B. was invented被发明，一般过去时态被动语态；C. is inventing正在发明，现在进行时；D. was inventing正在发明，过去进行时。根据时间状语about 2,000 years ago in China.可知用一般过去时态，排除A、C；主语是Paper可知，这里是动作承受者用被动语态，一般过去时态的被动语态，排除D。根据题意，故选B。
Liu Xiang ________by his coach to train regularly．
A．advised 
B．advises C．was advised D．be advised