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.

已知A＝(1，－2)，若向量$\overrightarrow{AB}$与$\overrightarrow{a}$＝(2，－3)反向，|$\left|\overrightarrow{AB}\right|=4\sqrt{13}$|，则点B的坐标为(    )

下列光学器材在使用时，得到的是放大实像的是（　　）