(2014台州)—The picnic is only in three days．Have you made any________—Not yet．So let’s discuss what to prepare．

global economy, a new drug for cancer, ______it is discovered, will create many economic possibilities around the world

It is raining heavily outside, ______ we decide to stay at home and watch TV.

She devoted as much time as she could ____________ others.

y depresses most people, but in________ case of my father it was otherwise