Everyone has his or her advantages, and only _______you do best can help to reach the goal and truly make a difference.

下列各句中，没有语病的一句是（ ）

I hear two high speed railways will be built in Xiangyang __________ a few years.—That sounds great. It’ll be more convenient and faster for us to go out.

Do you know his ________ — No. I only know he lives in Hongqi Street. We can call him before we go to his house.

elen saw his tutor nod ________ to her, shecalmed down and went on with her performance