The most important thing you must remember is that success doesn’t come ________ and that it’s the result of years of hard work.

下列各句中，没有语病的一句是

What did you say to your sister I saw her crying in the room.— It _________ my fault. I just said hello to her when I met her, nothing else.

The weather ________ be very cold at times, though it’s usually warm in spring in my home-town.

Each contestant of the English TalentCompetition is allowed 90 seconds to make an introduction to themselves ______.