A) pens, classes, roads, days, cats, brushes, desks, tables, plates, foxes, rooms, ladies, knives, chairs, buses, heroes, matches, ways, houses, families, flags, towns, wolves, countries, lions, parks, plays, dictionaries, thieves, keys

B) babies, plants, lemons, peaches, bananas, brushes, waiters, queens, men, shops, eyes, geese, sheep, teeth, children, oxen, deer, tragedies, tornadoes, theatres, airports

1. What's wrong?(What happened?) - John is ill(sick).

2. Is he in the hospital? - Yes, but he is better today.

3. Is Tom at home? - No, he isn't. He is usually at home at 5.

4. I'm usually at home at 4 on Saturday.

5. Where's Benny? - He is in the park.

6. What is he? - He is a doctor.

7. Is doctor Sanford at home? - He is still in the hospital.

8. Benny is in the park, isn't he?

9. When are they usually at home on Saturday? - He's usually at home at 6 on Saturday. ( At 6.)

10. There're always glad to see you.

11. What a pity he is not at home.

12. What a pity( Unfortunately) she is still in her bed.