How long do you think _________ the computer company launches a new model?
It is said that the second book __________ is written by the singer hasn’t come out yet.
— Dad, would you please buy some strawberries for me? I love them. — I'd like to, but they are not _____ in winter.
So suddenly _____ the disease that the whole family were at a great loss.
— But for your timely warning, we _____ into great trouble. — Well, you know we're friends.
Since the baby milk powder was found to be polluted, there has been universal doubt _____ other food products are safe _____.