来自聂志明的问题
也许你会为他们不能找到解决空气污染问题的方法而担心．Maybeyoufearthattheywon't___tofindthesolutionstotheproblemofairpollution．
也许你会为他们不能找到解决空气污染问题的方法而担心．
Maybe you fear that they won't___ to find the solutions to the problem of air pollution．
