Writers can create strange visual images if they forget this simple rule. Consider this sentence.
“When people get a good idea in their head, they should act on it.”
Here’s the problem. According to this sentence, multiple people are sharing one head. This is a number agreement problem: plural people, single head. Here’s another, slightly more complicated, example.
“When the audience members hold a candle in their hand, the entire room lights up.”
Again, we are writing about multiple people, who cannot share one hand, so we need “hands.” This gives us the following:
“When the audience members hold a candle in their hands, the entire room lights up.”
However, this may imply that each person is using two hands to hold the candle, which may not be true. Perhaps each person only uses one hand to hold the candle. By solving the agreement problem, we have changed the meaning. (This example also seems to imply that all the audience members together are holding only one candle, which is another number agreement problem.)
Here’s my recommendation. Either make the body parts plural, as in the first example, or revise the sentence to avoid the problem. The second example can be revised several ways, but two possibilities are as follows.
Free E-book to Improve Your Writing Skills
|Top writing strategies and expert instruction from
each of Precise Edit’s writing guides
Get the free e-book (PDF) OR
Purchase the Kindle version ($0.99).