第7题: [单项选择]He was punished ______ he should make the same mistake again. A. unless B. provided C. if D. lest 参考答案:D 答案解析:lest是连词,可以引导状语从句,意为“以免”,相当于in case,for fear that,从句中使用虚拟语气, 例如:Weigh well your words lest they be s
第14题: [单项选择]The president of the corporation demanded that all important business documents be photocopied in case of a computer diasater. A. rewritten B. manifolded C. folded D. manifested 参考答案:B 答案解析:manifold意为“复制”,与photocopy的意思接近。