— Emily, here’s a dictionary. I hope it will help you. — Thank you. It’s ________ what I need.

— Have you heard someting about MH370 ? —Yes. It was missing ________ March8,2014.

It is           useful book. I borrowed it from           school library.

Jack’s made few mistakes in his exam, ______?

He has saved lots of people’s________ since he came to this hospital last year.