The computer system broke _____ suddenlywhile he was searching for information on the Internet．

It was the drug, not the disease, that killed the boy.—He would be still alive today if he_____ that drug.[ ]

How can you possibly miss the news? It _______ on TV all day long

Have you finished the work?—Not yet. I _______ to do it just a moment ago.

Everyone can do it because it is very .