— When could you have a meal with me? — I'd like to go ___ it is convenient to you.
Raising environmental awareness was the aim of our art exhibition ____ last week.
_________ he was, he still went on with his work.
It was the training ________ he had as a young man ________ made him so excellent.
Not until she took off her dark glasses ________ she was a famous film star.
It is ten years since we ________ each other last time.