Every year, Tom remembers to have some flowers ______to her mother on her birthday.
_______ 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.
Don't you think _______of great importance that we should keep fit by taking exercise regularly?
The news was a terrible blow to her, but she ______the shock soon.