—— What do you think made the girl so glad? —— _____ a beautiful necklace.
During the economic crisis, we should help those for ______life is far from easy.
Computers can do nothing.But once ______what to do, they show extraordinary power to do a great deal.
_______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
What a pity! ________joined in the party, I would have met my old friend.
Today's homework was easy _______so I finished it quickly and went out to play.