41.  Our school is also big and beautiful, to the east of it stands a laboratory building, we can do physics, and chemistry in it , to the west of the aching building stands a big .

42.  When I got to the swimming-pool, there's several children in it, many of them are good at swim, one of them was studying swim, her mother as teacher her .

43.  Trees are a kind of useful plants, it do many good to people .

44.  Five subjects will be examined at the end of this term.To me, it as if very long, because I have no oppress feeling.

45.  I have done more English excerses , but I still lazy to read and recide the text, I am too lazy, how can I get rid of it ?

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

47.  In fact, most of us can't do this, why?

48.  He swam closer to the girl and caught hold of her arm and them swam back.

49.  When I got to he river bank, I found that there was several children swimming in the river.Many of them were good at swimming.

50.  I think June is one of the best season in a year.