Напиши, что ты чаще всего просишь своих родителей разрешить тебе сделать

she and her family live in london.

потому что это множественное число. они живут в лондоне.

everyone agrees that unless tiger population is protected ,they will become extinct.if it were not the efforts made by international campaigns the extinction would already have become a fact.it is time to cooperate and help to animals otherwise the future will be sad.supposing there were no tigers left in the world: how would we all feel? !