A lot of trees _________ around here every year, and we can enjoy fresher air now.

m,n是两条不同的直线，$\alpha ,\beta ,\gamma$是三个不同的平面，则下列命题中真命题的是（  ）

细菌是单细胞生物，而真菌是多细胞生物。

阅读下面的文章，根据所给的中文正确拼写单词，使文章意思完整。一空一词
   I have been in Australia for two weeks. I'm____ (过) a good time here, although I have to be ____ (诚实) and say that I ____ (更喜欢) China. I'm lucky to be here for my one- year English ____ (课程). It’s a great challenge for me. I will try my best to ____ (处理) with each of them. I used to spend too much time ____ (闲谈) with others on the Internet. Now I have ____ (意识到) I must take the chance. And I mustn't____ (浪费) time or money. Australia is the____ (六) largest country in the world and Sydney is a beautiful city, but I have no interest to go sightseeing. I'm ____ (自信) of myself I can catch up with others. I will memorize the experience in Australia.