一个词: 在缺词处加Р一个漏字符号(∧),在该行右边横线上写出该加的词。Р 错一个词: 在错的词下划一横线,在该行右边横线上写出改正后的词。Р注意: 原行没有错的不要改。РEarly men did not have clocks. They were told time by the 56. _________ Р Рsun and shadows of trees. at first time, they used 57. _________ Р Рsticks placing in the ground instead of trees. They made 58. _________ Р Рmarks in the ground, and she shadows from the sticks told 59. _________ Р Рthe time of day. Later, men began to use sundials. Some of 60. _________ Р Рsundials were boxes with sticks cast a shadow. Men were 61. _________ Р Рable to take the sundial box with them. The mark for noon 62. _________ Р Рwas very important. The sundials always have to face the same 63. _________ Р Рway or the time was wrong. sundials were good only on sunny 64. _________