----Do you know where coffee was from first?
----It was said that coffee in Africa a long, long time ago.
A. discovered
B. invented
C. was invented
D. was discovered
网友回答
A. discovered
B. invented
C. was invented
(答案→)D. was discovered
解析：
这题考查的是动词的语态，invent是“发明（以前没有的东西）”，discover是“发现（以前就有的东西）”，咖啡被发现应该用discover，而且应该用被动。选D。