问题描述：
从语法上讲,这里加逗号吗?
In December_____Andrew had an operation to replace a torn knee ligament.
请问December后面加逗号吗?记得时间状语放前面时要加,比如：On the first day of winter,Aunty Mary goest to her holiday house in the village.但是又感觉题目中的这句话应该不用加直接说Andrew had an operation...从句法上来说,到底加逗号还是不加呢?
In December_____Andrew had an operation to replace a torn knee ligament.
请问December后面加逗号吗?记得时间状语放前面时要加,比如：On the first day of winter,Aunty Mary goest to her holiday house in the village.但是又感觉题目中的这句话应该不用加直接说Andrew had an operation...从句法上来说,到底加逗号还是不加呢?
问题解答：
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