Warm-up

Directions: Correct the following run-on sentences. If the sentence is correct, write C.

1. The English system of measurement is used in the United States, it is not widely used elsewhere. 2. Most countries use the metric system, all scientists use it to record experiments. 3. Scientists need a uniform system of measurement, this system enables them to communicate easily with one another. 4. American students are gradually being taught the metric system, then in a few years it will be adopted officially. 5. Although learning two systems may seem confusing at first, it is necessary.