每天一練：2008年大學英語六級試題：第二十七期

82 But for mobile phones,our communication would not have been so efficient and convenient/ (我們的通信就不可能如此迅速和方便).
　　83 In handling an embarrassing situation,nothing is more helpful than humor/ a sense of humor(沒有什麽比幽默更有幫助的了).
　　84 The Foreign Minister said he was resigning,but (he) refused to make further explanation/ to further explain why(他拒絕進一步解釋這樣做的原因).
　　85 Human behavior is mostly a product of learning,while animal behavior depends mainly upon (或on) their instinct(s)(而動物的行爲主要依靠本能).　
　　86 The witness was told that under no circumstances should he lie to the court / is he allowed to lie to thecourt(他都不應該對法庭說謊).