надо ставить слова
1. Tigers cn run quick/fast
2. Please be quiet/quietly
3. Elephants can swim good/well
4. Is this snake safe/safely
5. Cats aren`t good swimmers. They swim bad
/badly
6. Some frogs are very loud/loudly / You can hear them at night.

1)Tigers run fast(тигр бежит быстро)2)Please be quiet(пожалуйста соблюдайте тишину)3)Elephants can swim well (слоны могут хорошо плавать)4)Is this snake safe (это змея безопасный)5)Cats aren`t good swimmers.They swim badly6)Some frogs are very loud.You canhear them at night