23.— It’s a long time _____ I saw you last.— Yes, and what a pity! It will be a long time ____ we see each other again.
My parents live in a small village. They always keep candles in the house __________ there is a power cut.
Many of them turned a deaf ear to his advice, __________ they knew it to be valuable.
It is difficult for us to learn a lesson in life __________ we’ve actually had that lesson.
__________ he had not hurt his leg, John would have won the race.
I won’t call you, __________ something unexpected happens.