An e-pal, as you have known, means a friend ______ you write e-mails.

Have you decided where to spend your summer holiday?—Not yet. We ___ go to Hong Kong.

You should keep your eyes _____ when you do eye exercises.

What do you think of “Gangnam Style”?–1 think itwonderful .

The notebook must ____________ Li Lei . It has his name on it.