81.  The man opened his mouth, put his fingers in it and took them out gain.

82.  Though hat, we were not afraid to clean them.

83.  This could make them recognize this world quickly.

84.  I like them very much.They ave become my good friends.

85.  I spent 30 yuan on them.

86.  They hardly makes any movement.Sometimes I will play with them.

87.  When I study in a long time, I will go to see them.

88.  Their teachers must be proud of them.

89.  Through the window, I saw seven or eight children swimming in the river, many of them are good at swim .

90.  Among of them, a little girl was learning swim, and her mother was teaching her.