精选优质文档-倾情为你奉上练习7：状语从句专项练习题I. Multiple Choice1. _ you return the dictionary to the library immediately, you will be fined. A. IfB. UntilC. ProvidedD. Unless答案：D解析：句意为“除非你马上把字典还回图书馆，否则你会被罚款。”unless相当于if not，换言之，“如果你不马上把字典还回图书馆，你就要被罚款。”2. _ difficulties they may come across, they will help one another to get over them. A. HoweverB. WhateverC. WhicheverD. Since答案：B解析：句意为“不论他们会遇到什么困难，他们会相互帮助去克服的。”whatever不论什么，用来指代尚未发生的未知的事物。比较，whichever不
