It is ____(luck) of him to get his lost bike back.It is _____(common) to brush teeth six times a day.
问题描述：
It is ____(luck) of him to get his lost bike back.
It is _____(common) to brush teeth six times a day.
答
你好，很高兴能够在这里回答你的问题：
It is (lucky) of him to get his lost bike back.
他很幸运，找到了他丢失的自行车。
It is (common) to brush teeth six times a day.
一般一天要刷六次牙
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答
lucky,common