Commas

Directions: Correct any comma errors in the sentences below.  Leave the sentence alone if it is correct.

1. All students are eligible to receive tickets but they must go to the athletic office to pick them up. 

2. Mark Twain’s novels early novels I believe stand the test of time.

3. The river was safe enough wasn’t it?

4. Oil which is lighter than water rises to the surface.

5. The Smith’s invited all of us over for a surprise birthday party but it turned out to be not much of a surprise.  The guest of honor never showed up.