______ their homework, these three studentshave to stay in the classroom for another thirty minutes.

，the wind died down and people began to appear on the street

下列各句中，没有语病的一句是（ ）

Tony eventually realized his childhood dream ___ hecould play on one of the top teams

We can never forget the days _______ the three astronauts in spaceship worked together and the days ________ we spent together [ ]