Recently a debate about ______is real beauty has been raised. People are pushed to think some questions like ______ is better,artificial beauty or natural one.

I think science is more useful than art.—- I disagree. I think art is _________ science.

Alison, I’m sorry. I can’t come to the wedding with you tomorrow morning. — ________? — My grandma was severely ill, so I have to stay in the hospital to look after her.

_____ our earth, otherwise it will be no longer fit for us to live on.

What are you ________? —My new book . Please help me find them.