阅读下面短文， 从短文后各题所给的A、B、C和D四个选项中选出可以填入空白处的最佳选项。Rita was tired from basketball practice, and she had to study for the next day's math test. Instead of either sleeping or studying, however, she was babysitting. And it wasn't 1 !
Molly 2 to wash her face or her hands before bed, but her mother had said that doing so was a 3 . Rita was bigger and stronger than the little girl and could 4 her, and she wanted to do so. What choice did she have? Surely she shouldn't just 5 and let the child go to bed unwashed. But she knew there 6 be a better way to do her job. Then she got an idea.
Rita went into the 7 to get what she needed. Then she chased Molly around the living room and dining room until she caught her and could carry her into the bathroom. Molly looked at the sink full of water and started shouting and 8 at the bathroom door.
" Have you ever washed your face and hands with purple water?" Rita asked. She added blue and red food coloring into the water." If you put your hands in the sink, the water will9 purple."
Molly opened her mouth to shout, then closed it and looked at the swirls(旋涡) of color. Finally, she couldn't 10 and put her hands into the swirls of color, turning the water purple. She was 11 that her hands did not 12 the same shade(色度), but Rita had not been foolish enough to add enough coloring for that result.
" Can I wash my face now, too?" asked Molly when her hands were 13 clean.
" Sure," said Rita." But wouldn't you rather do that with orange water?"
Ten minutes later, a tired but clean little girl was sound 14 and a tired but relieved babysitter was opening her 15 book.
