Exercise:

  1. One end of a camera carries the film, and the lens and shutter are in the other end.
  2. When an athlete is in training, good healthful food should be eaten.
  3. An engineer's time is not devoted to one branch of science, but should include many.
  4. By having only five men in charge of our city government, they would have more power, and we could then fix responsibility.
  5. There are two main classes of cake, sponge and butter. We are taught to make both in cooking school. I like the sponge cake. The butter cake is preferred by most persons.
[Shift in Number, Person, or Tense]

33. Avoid an inconsistent change in number, person, or tense.

[Note.]—A change of tense within a sentence is desirable and necessary in certain instances, for which see [55].

Sometimes, for the sake of vividness, past events are described in the present tense, as if they were taking place before our eyes. This usage is called the historical present. A shift to the historical present should not be made abruptly, or frequently, or for any subject except an important crisis.

Exercise:

  1. A person should be careful of their conduct.
  2. Sentences should be so formed that the reader feels it to be a unit.
  3. One should make the best of their surroundings and their possessions, provided they cannot better them.
  4. When he sees me coming, he looked the other way.
  5. Silas Marner lost many of his habits of solitude, and goes out among his neighbors.
[Mixed Constructions]