Chidren get gift---Christmas and----their A.on on Bat on Cin in Din on

问题描述:

Chidren get gift---Christmas and----their A.on on Bat on Cin in Din on
英语选择题,解释为什么要这样选,正确答案是B吗?

B
at Christmas
在圣诞期间:
There are lots of parties at Christmas.
圣诞节期间有很多聚会.
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