2.  (Worse) It is important to know the pros and cons on the occasion of choosing a compact disk (CD) recorder.  (Better) The pros and cons must be known when choosing a compact disk (CD) recorder.

3.  (Worse) There is a chance that the college will install l00Mbps cards notwithstanding the fact that they have served the school well in the past history.  (Better) The college might install 100Mbps cards although they have served the school well in the past.

4.  (Worse) It could happen that the college will really keep up with the changing times on the basis of installing 100Mbps cards.  (Better) The college could keep up with changes by installing 100 Mbps cards.

5.  (Worse) To reach a decision on the manner in which to upgrade its system, the possibility exists for the school to replace the 10Mbps cards with the 100Mbps network cards.  (Better) To decide how to upgrade its system, the school may replace the 10Mbps cards with the 100Mbps network cards.

6.  (Worse) It is crucial that the consumer possesses knowledge about using either a mouse or a track ball before making a purchase of a product.  (Better) The consumer must know how to use either a mouse or a trackball before purchasing a product.

7.  (Worse) It is necessary that the mouse has the ability to move around the workspace in any direction in order to perform its work task.  (Better) The mouse must be able to move around the workspace in any direction to perform its task.

8.  (Worse) There is a need for a trackball to stay stationary under circumstances in which limited space is available  (Better) A trackball must stay stationary when limited space is available.

9.  (Worse) It is possible that a mouse is easier for the beginning user to control for the reason that a hand is easier to move in any direction compared to a thumb.  (Better) A mouse may be easier for the beginning user to control since a hand is easier to move in any direction than a thumb.

10.  (Worse) It goes without saying that it is not necessary for a trackball to have total hand and arm movement in order to move the cursor around the screen.  (Better) A trackball does not require total hand and arm movement to move the cursor around the screen.

11.  (Worse) The mouse has a sort of ball inside that basically moves along the workspace and controls electronic connections inside the particular device itself.  (Better) The mouse has a ball inside that moves along the workspace and controls electronic connections inside the device itself.

12.  (Worse) It is the board of directors who make a decision in the event that the future plan will be accepted.  (Better) The board of directors decides if the plan will be accepted.

13.  (Worse) There are laser printers that have a slight edge over other types of printers in terms of printing speed and cost.  (Better) Laser printers have a slight edge over other types of printers in printing speed and cost.