Question

1. I … a student. 21 2. Dennis …. a student. 1. John and Pat …. good students. 2. This  a good book. 5. They  in my class.

Answer 1

1. Am

2. Is

3. Are

4. Is

5. Are

Answer 2

It seems like you have a set of sentences with missing words. Here's the completion for each sentence:

1. I am a student.
2. Dennis is a student.
3. John and Pat are good students.
4. This is a good book.
5. They are in my class.