句型转换 1.We are 【trying to save the manatees】 _____are you ____?

句型转换 1.We are 【trying to save the manatees】 _____are you ____?
2 work hard,and you will pass the axam(改为同义句)
________work hard,you will pass the axam
3 scientists discovered the animals in a big forest(改为被动语态)
the animals _____ ______in a big forest by scientists