— I hear the famous singer Xu Song may come to Weifang next month.— Really? _______ he comes, my younger sister will be very excited.

You will fall behind others         you work hard.

-Hurry up! The bus is coming.-Wait a minute. Don’t cross the street       the traffic lights are green.

---What do you think of the book ? --- I don’t like it at all . It’s _____ interesting _____ exciting . 

       all of us enjoy playing computer games,         we can’t spend too much time on them.