21.

Title: The Apollo 13 Mission
I. Introduction
A. Historical importance
II. Body
A. The events of the flight
1. an electrical explosion and fire
2. crew exposed to near-freezing temperatures
3. crew barely makes it back to Earth alive
III. Conclusion
A. What we have learned from the mission

Using the outline, answer the following question.

In an essay about the Apollo 13 mission, where should this sentence appear?

The mission should have proceeded normally, but problems arose during the flight.

in the body of the essay as a topic sentence

in the body of the essay as a supporting detail

in the conclusion

in the introduction