Тебе сообщают удивительные факты. переспроси, как показано в образце

i never have to go the library. or:

i don't have to go library frequently.

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? !