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.

世界最高峰珠穆朗玛峰海拔8844米，我国陆地最低的吐鲁番盆地在海平面以下155米，两地相对高度是（　　）