问题
选择题
----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
答案
答案：D
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。