单选.What can we do （ ） the earth.A.to help B.helping C.for help 以及原因

What can we do What can we do 单选.What can we do （ ） the earth.A.to help B.helping C.for help 以及原因 what we can do 还是 what can we do what can we do?翻译 what can we do now? We want to know to help them.A.what can we do B.what we can do C.how can we do选哪个? 为什么We can do what we can to help you . What can we do with a computer what can we do to protect AIDS What can we do for the environment? What can we do at Animal Land? What can we do about global warming? Koalas are in( ).What can we do? what else can we do for you what can we do to protect? 英语翻译we should accept what we can do and face what we can not do. We are who we are,just do what we can