题目

To my relief, his honesty (赢得) her the trust of his teacher. 答案：【1】gained/won14．如图，四边形ABCD中，AB∥CD，BC∥DA，过AC的中点O作一条直线分别与AB、CD交于点M、N，点E、F在直线MN上，且OE=OF．（1）图中共有几对全等三角形，请把它们都写出来；（2）求证：∠MAE=∠NCF．