Not until all the fish died in the river, ____ how serious the pollution was.
You can _____ that all the goods are delivered on time.
How can I help them to understand ___ they won’t listen to me?
I would love ___ to the party last night but I had to work extra hours to finish a report.
Leonardo da Vinci (1452-1519) ____ birds kept in cages in order to have the pleasure of setting them free.
_____, we decided to spend the night at the foot of the mountain.