Classareover,let'sgototjelibrary这个句子哪里错了?还有一个Thechildrenandtheirteachersarenearthehill对划线部分提问划线的是nearthehill

　　Classareover,let'sgototjelibrary这个句子哪里错了?还有一个Thechildrenandtheirteachers

　　arenearthehill对划线部分提问划线的是nearthehill