下列各句中，没有语病的一句是（ ）

Where did you meet your middle school teacher?— It was in the supermarket ______ I was doing some shopping with my son

下列各句标点使用正确的一项是

I hear you won the prize in the English Contest last week.— That was the second time that I ______ the prize.

What class are you in—I’m in ____, ____.