小题1:He tried his best to find a way to s          the problem.
小题2:Ten players will take part in the final to c          for the gold medal.
小题3:Thanks to the soldiers, the villagers s          the flood.
小题4:The family began to d          the Christmas tree with glass balls and lights a week ago.
小题5:Tony was a          into the chess club last year.
小题6:As a r          (结果), I totally changed my shape.
小题7:There is no            (疑惑) that our life will become better and better in the future.
小题8:He set a            (目标) for himself of exercising at least three times a week.
小题9:There are different            (类型) of blood, as you know.
小题10:In many fields of our life, plastics has been used to            (取代) wood and iron.