OpenSAT

Question #N1091

The use of commas in a sentence can be tricky. They can indicate a pause in the flow of thought, separate items in a list, or set off a nonessential phrase. In general, commas should be used sparingly, but they can be very effective when used correctly. For example, if a writer wanted to indicate a pause in the flow of thought after the phrase “in general,” they could use a comma. The writer could also use a comma to set off the phrase "but they can be very effective when used correctly."