Don’t you know your computer has been infected with viruses?— Really, no wonder it hasn’t ________ as well as before. [ ]

Philip has gone to New Zealand．Oh，can you tell me________

I’ve heard that preparations __________ for the coming festivalLet’s give them a hand

31．Scientists have been curious about that fishHow does it live _______most fish would freeze to death?

Ten years ago the population of our village was ______ that of theirs.