根据句意，用括号中所给词的正确形式填空，每空不限一词。【小题1】The police believe these footprints are one of the thieves

根据句意，用括号中所给词的正确形式填空，每空不限一词。
【小题1】The police believe these footprints are one of the thieves’ (thief).
【小题2】The man in his forties (forty) is the person who saved that boy.
【小题3】The old man said that he was lying (lie) in bed from eight to ten last night．
【小题4】No country has made (make) such great progress as China in the past thirty years.
【小题5】All the students were divided (divide) into four groups and then they went on hiking with four teachers.

解析：【小题1】本题的含义为警察认为这些脚印是来自于其中一个小偷的，one of表示所属关系后跟可数名词的复数形式，本题表示小偷的脚印，故本题空格处填小偷复数的所有格形式thieves’。【小题2】本题的含义为那个四十多岁的人是救了那个男孩的人，in one’s+整十数词的复数，表示几十多岁，故本题空格处填四十的复数形式forties。【小题3】本题的含义为那个老人说昨天晚上8点到10点他一直躺在床上，和过去具体时间连用可用过去进行时，故本题空格处填was lying。【小题4】本题的含义为在过去的三十年没有一个国家取得像中国这样的巨大进步，本题表示完成的概念，用完成时态，结构为have或has+过去分词，本题主语为单数第三人称，故本题空格处填has made。【小题5】本题的含义为所有的学生被分成四组，表示被动的意思，结构为be+动词过去分词，本题表示过去，故be动词使用were，故本题空格处填were divided 。

我好好复习下