Tom studies science very hard （改为否定句）急

Tom studies science very hard （改为否定句）急 tom studies science very hard(改为否定句) Tom studies hard.(改为否定句) Tom studies science very hard.(改为一般疑问句) He studies hard改为否定句 Tom studies very hard every day.的一般疑问句和否定句 Lily studies hard改为否定句,hard 提问 一般问句 his sister studies very hard.改为同义句 Tom will fail the exams unless he studies hard.(改为同义句） tom often studies in the library.改为否定句 His sister studies very hard.(改为同义句） His sister is ___ ___ _ Mary studies very hard.(改为感叹句)