1.  I had believes that it was a very hard question which few people could work out.

2.  " I thought I was lucky, because , when I work it yesterday .

3.  Otherwise, I would work it like Cuozongci.

4.  This week, it's our turn to sweep the school , On Monday, we went to school at 6:45, the sky was too black, and the street had nobody, we started working , the ground had many leaves , It took times for us to carry he eaves .

5.  Though they are incompleted of their body , they still work hard and study hard.

6.  When he was a child, he had to work in the fields.

7.  Later, he worked in a factory.

8.  In 1962, he died while working, Lei Feng set a good example us all.

9.  we must work hard.

10.  With her help, we worked hard and made good progress Miss Chen loved her pupils.