Instead of staying the same every day, Mary’s working hours are .

I don’t think fast food is good for our health, so I_______ go to MacDonald.

In the global economy, a new drug for cancer, ______ it is discovered, will create many economic possibilities around the world.

I ________ more information I needed, but my computer broke down.

Did you watch the movie Tangshan Earthquake last night?—I had planned to, but it ___ hard all the time