精选优质文档-倾情为你奉上2013 年普通高等学校招生全国统一考试 英语(北京卷)第二部分：知识运用（共两节，45 分）第一节 单项填空（共 15 小题；每小题 1 分，共 15 分）21. Volunteering gives you a chance_ lives, including your own.A. changeB. changingC. changedD. to change22. Dont turn off the computer before closing all programs _ you could have problemsA. orB. andC. butD. so23. Shakespeares play Hamlet _ into at least ten different films over the past years. A. had been madeB. was madeC. has bee
