To our surprise, they actually ____ on the simple question till late into the night.
Only in this way, _______succeed in solving the problem.
On Christmas Day, children had _____ singing, dancing and playing games.
______ when he was young, he would have a good job now.
______the most famous musician in the world, he earns a lot of money every year.
_______his homework, he was not allowed to play out.