阅读短文，判断正误，正确的在题前打T，错误的打F 
Helen is an English school girl. She’s eleven years old. Now she and her parents are in Jinan. Her parents teach English in our school. They are very kind. Helen is a good pupil. She’s good at maths. We are good friends. She’s clever and beautiful . Now she can speak a little Chinese.
(1)Helen is from America.   ____ 
(2)Her parents are English teachers____ 
(3)Helen is in Beijing now.____ 
(4)She isn’t good at maths.____
(5)She can speak a lot of Chinese.____ 

把下面的有理数填在相应的大括号里：（★友情提示：将各数用逗号分开）15，-$\frac{3}{8}$，0，﹣30，0.15，﹣128，$\frac{22}{5}$，+20，﹣2.6

正数集合{____ ﹜；

负数集合﹛____ ﹜；

整数集合﹛____﹜；

非负数集合﹛____ ﹜．