( )People have eaten turkey _____Christmas since 1650.A.at B.on C.in D.of
问题描述：
( )People have eaten turkey _____Christmas since 1650.A.at B.on C.in D.of
答
1.at christmas (在圣诞用at) 一般后面跟时间,如at christmas time意思是(圣诞期间）.举例：To be here at Christmas time is a dream.that has come true!圣诞期间到这儿来是（我的）梦想,它终于实现了.2.on christ...