21.   The builder said if shorter boards were used, the structure would be weaker.

22.   The messages can be answered by anyone who is using the board, so the student is left to decide whether the information received is accurate and reliable.

23.   The wider ice has certainly been a factor for the Americans who, on the smaller NHL surface, regularly use the boards as a sort of seventh defenseman.

24.   Visitors can join chat rooms and use message boards.

25.   Using their boards as pickaxes, the two began hacking off huge chunks of snow and piling them on either side of the rock.

26.   Williams continues to work out heavily with weights, often using balance boards.

27.   You might try using some boards to help channel the animal into the trap.

28.   Argentina and Hongkong have used currency boards successfully in the past.

29.   It is not imperative that a board be used as the diagram could be drawn with a piece of charcoal or chalk on the ground.

30.   The coated duplex boards were used to conceal the undeclared items, a prima facie evidence of smuggling.