这是一个学生分数表
StudentName StudySubject SubjectScore
Peter EN 89
Peter CH 78
Peter HO 99
May EN 34
May CH 88
May HO 66
请用SQL 写出查询以下结果的脚本：
StudentName EN CH HO
Peter 89 78 99
May 34 88 66
SELECT A.StudentName,A.SubjectScore as EN,B.SubjectScore as CH,C.SubjectScore as HO
From students A,students B,students C
WHERE A.StudentName=B.StudentName AND B.StudentName=C.StudentName
AND A.StudySubject='语文' AND B.StudySubject='数学'
AND C.StudySubject='英语'