单选题 The environmental group hopes ______ the forest to its original condition by the end of the decade.
A. having restored B. to have restored
C. to be restored D. to have been restored

【正确答案】 B

【答案解析】[解析] 从四个选项的区别点可以看出，此题的考点是非谓语动词的用法。hope要求接不定式作宾语，而不是hope doing sth. 。另外不定式restore的逻辑主语是group，相互关系应该是主动的，所以C和D都是错误的。正确答案为B项to have restored，此处用完成式表明到将来某一时刻(by the end of the decade)要完成的动作。