15.
A. Stay away from the seawater.
B. Wait until he gets rid of his cold.
C. Go to the ocean for a swim.
D. Lie in the sun on a beach.
16.
A. She did better on the quiz than the man did.
B. She did not do well on the quiz.
C. She has not yet received her grade on the quiz.
D. She did not have to take the quiz.