is biology one of his subjects.同义句

Is math one of her subjects?改为同义句 _____ _____ _____ math? 同义句转换math is the most difficult of all the subjects the black one is his cap（改为同义句） English is one of ______ important subjects in our school English is one of ______ important subjects in our school. One of my _____(good) subjects is Maths. His friend's likes biology best.(改为同义句） He goes to school at Jeff is his mother take care of his sister同义句 格式：Jeff is his Tom is one friend of mine(改为同义句） Tiis is one of my friends的同义句 Fred is one of my friends.同义句转换 hi is one of my friends的同义句