While he was investigating ways t improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
For quite _____ students,their teacher's advice is more important than _____ of their parents.
“I in the dormitory, watching the live TV broadcast about the tsunami.” David told the policeman who had driven there to question him.
The cousins are alike in age,but ________ they are as different as day and night.
The examination results _____in the speech of our headmaster delighted all of us.
To her ________,the salesgirl still helps that old lady.