After the six-party talk in Beijing, an agreement was reached _________ that North Korea would abandon _________ nuclear weapons.
--What do you think has made Tom so excited? --_____ a prize in a lottery.
The order came ___ the soldiers ___ the small village the next morning .
___ the help of computers , there are no ___ problems.
_____ it is _____ you obtain, you should share _____ your parents your feelings.
Occasions are quite rare ____ I have the time to spend a day with my kids.