11.   Suppose I tell you the name of the guy who knocked off Mahoney.

12.   Ten black men took a sledge-hammer to the work, and knocked off a large part of his face.

13.   The blow was hard enough to knock him off balance.

14.   The farmer knocked off the lumps of earth in between the blades of his plough.

15.   They need to figure out how to make a reasonable profit and knock off the greed.

16.   We usually knock off work at about twelve on Saturday.

17.   What do you do with an evil one, who is knocking off the neighbors?

18.   Although famous for his long Novels, Ken Bradford also likes to knock off short stories from time to time.

19.   Who would want to knock off these old bicycles?

20.   A gust of wind knocked him off balance and he fell face down in the mud.