—when did you see Tom __it was in the market ______i was doi
3个回答

先行词为地点surpermarket,用关系副词where引导定语从句对该先行词加以限定.It

was in the supermarket where I was doing some shopping with my son that I met my

middle school teacher.(I met my middle school teacher in the supermarket where I

was doing some shopping with my son.)