A. 根据句意、释义或中文提示, 写出句中所缺单词，使句子通顺。
66. Drivers will be punished if they don’t stop to let the pedestrian (行人) go first because it’s __________ ( 违反 ) the traffic law.
67. Madame Curie always worked extra hours to (发现) radium.
68. Millie (like something better) Chinese food to Western food in the past.
69. Liu Xiang (achieve sth. that you have been trying to do) in breaking the world record of men’s 110-metre hurdles in July, 2006.
70. If you keep trying your best, I’m sure you will make some in your study.