While he was investigating ways t improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
________ you interrupt now? Can’t you see I’m on the phone?_ Sorry, Sir, but it’s urgent.
Is this school ______ you used to study?
______ nice and delicious, the fried chicken was soon sold out.
You can’t imagine _____ when they received these nice Christmas presents.
I didn’t see her in the meeting room this morning. She _____ at the meeting.