We will work ____ we are needed.
Dogs have a very good_________ of smell and are often used to search for survivors in an earthquake.
I like to go to the opera __________.
After five hours' drive, they reached __________ they thought was the place they'd been dreaming of.
He has given us a suggestion __________ we shouldbuy a cottage in the country with the money we have saved.
There's no __________ in the way they do their accounts(记账).