I failed again，but my parents encouraged me and told me that failure________the mother of success.

Did you have a good time at the party ? — Yes, I had a very good time, but I’d rather ___to the party because I left my work undone.[ ]

We must help each other and _____ each other.

The headmaster has retired but no one knows who will________him in the post.

I enjoy reading and_______ music.