Is những really necassary?
It marks it wrong if it's not. Moreover, it also marks 'các' wrong too.
Các was marked wrong for me as well
yes I am wondering this as well...
Họ is plural, so the người needs to be made plural with the những (ie they don't want to be the last people vs they don't want to be the last person).
People can refer to 1 group of humans however if they would write "They do not want to be the last humans." it would have another connotation.
Họ không muốn trở thành những người cuối cùng
Họ không muốn lầm những người cuối cùng should be accepted.