One winter day ____, he saw the tracks of animals in the snow and observed that the appearance of each one was different.
We’re so busy that no one in the office can _____ for any other work.
The boy said that the fish his mother cooked tasted ______.
14. He _____ a visit to the factory and was warmly _____ by the workers there.
The girl ______ on the ground _____ to me that had _____ the purse on the desk.
The hens _____ 50 eggs last week, but this week they aren’t _____.