11.They are not cutting the cake with a sharp knife. -> . ……………………………………………………………………………… 12.The children did not look at the animals with strange eyes. -> . ……………………………………………………………………………… 13.They have not provided the victim with food and clothing. -> . ……………………………………………………………………………… 14.People do not speak English in everywhere in the world. -> . ……………………………………………………………………………… 15.You must not give this machine back before 5:30 p.m. -> . ……………………………………………………………………………… 16.They do not call my father’s name whenever they see me. -> . ……………………………………………………………………………… 17.One of the students does not always erase the board after class. -> . ……………………………………………………………………………… 18.You must not clean the wall before my father comes back. -> . ……………………………………………………………………………… 19.He did not tell the new pupil what to do first. -> . ……………………………………………………………………………… 20.They have not just told him about the meeting. -> . ……………………………………………………………………………… 21.My mother has not ever treated me with such kindness. -> . ……………………………………………………………………………… 22.They did not believe everything I said. -> . ……………………………………………………………………………… 23.A sudden increase in water pressure may not break the pipe.