77. come from 出生于;来自

76. come across 被理解; 遇见

　 come back 回来；想起来

75. check in 办理登机

74. change one's mind 改变主意

73. catch (a) cold 着凉;伤风

catch up with 赶上(或超过)

72. carry out 执行

71. care for 照顾; 喜欢

70. call on 拜访

69. by the way 顺便说;顺便问一下

68. by phone 打电话