1. I am a student. They are not students, They are pupils.

180.

A: - Have you read this book?

B: - Yes, I have. I have already read this book.

A: - When did you read it?

B: - I read  it last year.

A: - How long did you read it?.

B: - I  was reading it the whole month.

A: - When did you finish reading it?

B:- I had read it by the end of January.

A: - Did you like reading it?

B: - I had read (возможен вариант I read it ) it with great interest.

A: - Had you been reading it since the end of the last year?

B: - Yes, I had.  I had been reading it since December 2021.

A: - What are you reading now?

B: - And now I am reading a detective story. 

A: - Do you read every day? 

B: - Yes, I do. I read it every day in the evenings.

A: - How long have you been reading it?

B: - I have been reading it  since last week.

A: - Do you like it?

B: - Yes, I do.  I amenjoying it.

181. The morning was cold and rainy, but since 10 o'clock the weather has changed and now the sun is shining brightly.

182. The morning was cold and rainy, but since 10 o'clock the weather had changed and  the sun was shining brightly.

183. - “Look Jack, here is an interesting book. I bought it a few months ago. I have read it. You may take it.”

- “Thanks, Bob. I have read it too. I read it before it had gone out of print. ”

184. When we came to the station the trainhad already left, and another was coming in.