新東方提供的翻譯參考答案。

87. You would not have failed if_you had followed my instructions（按照我的指令去做）

88. Despite the hardship he encountered, Mark never__gave up pursuing knowlege_（放棄對知識的追求）

89. Scientists agree that it will be a long time before we find the methods of curing cancers（我們找到治愈癌癥的方法）

90. Production has to be increased considerably to keep pace with the constantly increasing and of consumers. （與消費者不斷增長的需求保持同步）

91. The more exercise you take, the fewer chances you will have of catching a cold.（你越不大可能感冒）