B. Directions: Write I on the blank if the clause is independent, or it can stand alone. Write D if the clause is dependent, or it still needs other words to complete the thought it expresses.

1. to whom I addressed the letter

2. that is the key of my drawer

3. when the ice skater impressed the audience

4. the inventor showed what a genius he was.

5. you will be called if you fail to attend the seminar.

6. when the temperatures drop below freezing.

7. because my weight has increased this year.

8. my parents came home early from their trip

9. the class went on a trip to the museum

10. since the lights were turned off​