--- How did the global financial crisis ? --- I’m not quite sure. Anyhow, it is an very important problem facing us.
.Emergency line operators must always ______ calm and make sure that they get all the information they need to send help.
The news of the mayor’s coming to our school for a visit was __ on the radio yesterday.
.I have ______ all my papers but I still can’t find my notes.
She’s having a lot of trouble with the new computer, but she doesn’t know whom to ____.
The performance _______ nearly three hours, but few people left the theatre early.