问题描述：
It was sad that coffee___in Zfrica a long,long time ago.A discovered B invented
It was sad that coffee___in Zfrica a long,long time ago.A discovered B invented C was invented D was discovered
It was sad that coffee___in Zfrica a long,long time ago.A discovered B invented C was invented D was discovered
问题解答：
我来补答展开全文阅读