Yang Hui was born in Longyan,FUjian.She ____(grow ) up in a small village.When she was ____(bad) burnt in a terrible fire.She lost all her ____(finger) and feet.She couldn't walk and she hardly ever went out.

    The young girl had to learn to do everything.At first she wasn't able to use chopsticks(筷子)。Her parents had to teach her for ____ long time.She always tried her best and now she can look after ____(she) well.

    About five years ago, Yang Hui ____(see) someone make cross-stitch(十字绣） and she wanted to make it.It was difficult ____her. ____she never lose hope.And through hard practice,now she is better at ____(make) it than many normal people.

    Now she is 21 years old and she is in hospital  in Fujian .She needs an operation (手术)but she doesn't have enough money.Many kind people learn about her story and call on people ____(collect) money for her.

    As for her future, Yang Hui said,"I hope to stand up and walk one day.I want to make more money for my family and myself."

在代数式$3x+\frac{1}{2}$，$\frac{5}{a}$，$6x^{2}y$，$\frac{3}{5+y}$，$\frac{a}{2}+\frac{b}{3}$，$\frac{2a{b}^2{c}^3}{5}$，$\frac{2}{x}+\frac{4}{y}$中，分式有(      )