1. The comma exercise.

Drag and drop parts of the sentence below onto the lines provided to make a sentence.
The control units are in bold.

Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.

When you have completed this exercise, click on the Next button at the top of this screen.