. — Why was Professor Johnson unhappy those days? — The only reason was ________the theory he stick to ____ wrong.
Most birds find it ____ to sleep in the trees.
The children talked so loudly at dinner table that I had to struggle ____.
Peter earns ____ his brother does.
Edward couldn’t remember when he first met Mr. Crook, but he was sure it was ____ Sunday because everybody was at ____ church.
____ in the fields on a March afternoon, he could feel the warmth of spring.