题目

如图，在△ABC中，∠B与∠C的平分线交于点O，过点O作DE∥BC，分别交AB、AC于点D、E．若AB=5，AC=4，则△ADE的周长是        ．   答案： 9 We were made ______ the lost girl on such a rainy day that we had to make a fire ______ us warm.A. look for, keepB. to look for, to keep C. to look for, keepD. look for, keeping