He has a _______ knowledge of animals.
The most important thing about cotton in history is ___part that it played in ____Industrial Revolution.
While he was investigating ways to improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
It is ___world of wonders, _____world where anything can happen.
The Wilsons live in ______A-shaped house near the coast . It is _______17th century cottage.
Tom owns ______larger collection of ______books than any other student in our class.