__April 29,2011 A、in B、on C、at D、byThe wedding of Prince William and Kate Middleton was held in westminster Cathedra __April 29,2011A、in B、on C、at D、by
问题描述：
__April 29,2011 A、in B、on C、at D、by
The wedding of Prince William and Kate Middleton was held in westminster Cathedra __April 29,2011
A、in B、on C、at D、by
答
B
因为具体日期前介词只能用on
其他介词都是不可以的~\(≧▽≦)/~啦啦啦亲~
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