Brad was a good student. He studied hard because he enjoyed learning, but when he was sick, he did not enjoy anything. "Brad, you will be better tomorrow," his mother assured him, smoothing his pillow. "I called Mrs. Adams and she understands." Brad tried to smile, but his stomachache would not let him. The next morning, however, Brad felt fine, just as his mother had said. But when Brad arrived in his school room, there was a substitute teacher. "Now what?" Brad thought. "This teacher will not know I was sick yesterday."