Question

What is the subject of your adjective clause ?
I went to the zoo and I saw Harriet the tortoise ,and it was big.

the verb?

what word does your adjective clauses modify?
Ms. Sue
I did the last one for you. Now it's your turn.

I'll be glad to check your answers.
Writeacher
I don't see any adjective clause in your sentence. Are you sure it's correct??