—Who should be responsible for the accident?—The boss,not the workers.They just carried out the order___
The kind lady devoted all her life to _____ those homeless children.
It’s helpful to put children in a situation _____ they can see themselves differently.
Only when he reached the tea-house ______it was the same place he’d been in last year.
___ they visited our school, they showed great interest in everything they saw.
It_____everyone to hear all of the villagers behind the mountain were killed in the earthquake.