1.  I saw seven or eight children swimming in the river.

2.  From evening to evening, there were six or seven rains of sand blown into my left eye.

3.  Outside the windows, I saw seven or eight children swimming in the river.

4.  There Maybe seven or eight ones .

5.  but about seven years after .

6.  I saw about seven children swimming in the river.

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

8.  Today I saw seven or eight children swim in the river.

9.  I saw here are seven or eight children in the river.

10.  This afternoon, when I was walking along the river, I saw seven or eight children swimming in the river.