11.  However, my eyes could not keep off her back.

12.  So next time I will remind myself that not all slender back with long hair are women.

13.  She smiled at me and nodded again, like I hadn't interrupted her, then turned back to her book.

14.  When we were about to went back, the leader asked us to pay $40 per person.

15.  One week later, he gave the money back.

16.  To welcome the freshman to come to the fascinating university, two boys with a excited mood have come back to their dormitory, instead of enjoying the valuable time with their busy parents at home.

17.  He glared back but kept telling.

18.  She, in the contrary, beats her husband into hospital because as an inner man she maintains muscles strong enough to hit her husband back.

19.  As a matter of fact, today many men gradually go back home as househusbands.

20.  For these stereotyping, I would like to say those must still be undereducated to agree with these ridiculous thoughts which can be dated back to primitive eras.