Answer:
1. The table is heavy.
2. They drive to work.
3. Hens lay eggs.
4. That old man knows her.
5. You are a student.
6. He sleeps here every night.
7. They catch fish.
8. We go to work every morning.
Explanation:
For number 1, the table is singular so use "is".
For number 2, they is plural, therefore use "drive".
For number 3, hens is plural so use "lay".
For number 4, old man is singular so use "knows".
For number 5, you is considered plural so use "are".
For number 6, he is singular so use "sleeps".
For number 7, they is plural so use "catch".
For number 8, we is plural so use "go".
