Disthinguished guests and friends, welcome to our school! ________the ceremony of the 50th anniversary this morning are our alumni (校友) from home and abroad.
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.