---- Would you have gone shopping had it been possible? ---Yes, but I ___ busy doing my homework.
The boy burst into tears ________ he saw his mother.
Raising environmental awareness was the aim of our art exhibition ____ last week.
_________ he was, he still went on with his work.
It is ten years since we ________ each other last time.
More wild tigers have been seen in the forest around this area, ________ there used to be very few.