问题补充：
In order to improve English, .
A. Jenny’s father bought her a lot of tapes
B. Jenny bought a lot of tapes for herself
C. a lot of tapes were bought by Jenny
D. a lot of tapes were bought by Jenny’s father
答案：
A. Jenny’s father bought her a lot of tapes
(答案→)B. Jenny bought a lot of tapes for herself
C. a lot of tapes were bought by Jenny
D. a lot of tapes were bought by Jenny’s father
解析：主要测试主谓一致。错因分析考生很有可能误选A项或D项。其实，in order to improve English可以看成是to improve English的变形，根据语法知识可知，主句的主语为人，选项C和D可以首先被排除。再由句意可知，选项B为正确答案。动词不定式的逻辑主语为执行不定式to do这个动作的人或物。动词不定式的逻辑主语可以是句子的主语、宾语，有时还可以是介词for或of的宾语。如：Jack is late again. It is typical of him to keep others waiting.
