Is the red portion of the text a complete or incomplete thought: After Coach G fed his dog a treat, it wagged its tail happily.

Is the red portion of the text a complete or incomplete thought: Until I learn how to braid hair, Andy won't let me work at his barber shop. Remember, an incomplete thought is a dependent clause.

Which punctuation should go between the red and blue text? The stamps in his stamp collection were of great quality _ they were also hard to find.

Which punctuation should go between the red and blue text? Some of the volunteers truly cared about the cause _ others were just hoping to impress their boss.

Which punctuation should go between the red and blue text? We can go to the library to do our research _ Mondays are pretty quiet there.