完成句子和句型转换（20分，共10小题，每小题2分）
小题1:你看完这本书后，最好马上还给我。
When you                the book, you’d better return it to me at once.
小题2:看起来我们班将赢得这场篮球赛。
               that our class will win the basketball game.
小题3:他三十几岁时成了一名老板。
He became a boss                   thirties.
小题4:他们是中国的骄傲。
They are the                    China.
小题5:这音乐听起来像鸟儿在歌唱。
The music                     the singsing of  birds.
小题6:The film began five minutes ago.(改为同义句)
The film has                      for five minutes.
小题7:“Are there homeless people in your city?” I asked Wang Tao.(改为同义句)
I asked Wang Tao _____ there _____ homeless people in his city.
小题8:He’s never been abroad.（改为反意疑问句）
He’s never been abroad,  _____  _____  ?
小题9:You mustn’t play football in the street.(改为祈使句)
_____  _____ football in the stree
小题10:He has taught in this school since he was twenty.（对划线部分提问）
_____  _____   has he taught in this school?