the Stone Age Peopl __(use)the stone and wood to get fire ,but nowadays we __(use)many different

the Stone Age Peopleuse(因为是事实,用现在时就行)__(use)the stone and wood to get fire ,but nowadays we _use_(use)many different ways to get fire应该用过去式不用也行，如果强调对比，也可以用过去式，但通常都用不着的。