71. If he (follow) my advice, he wouldn’t have lost his job. 72. It suddenly (occur) me that I had left my keys on the office desk. 73. The (careful) you write, the more mistakes you will make. 74. Jacky has a great sense of humor and always contains education in (amuse). 75. The reason why he failed in the contest was that he was (lack) in confidence. 76. Taking pictures is strictly (forbid) in this park. 77. His death means a great (lose) to science. 78. It is (bear) to take a cold bath in winter. 79. Jack always makes his students (convince) of the latest theory and knowledge. 80. So (forget) is Mrs. White that she leaves her documents here and there.
答案:71.had followed 72.occurred to 73.less carefully/more carelessly 74.amusement 75.lacking 76.forbidden 77.loss 78. unbearable 79.convinced 80.forgetful