Answer:
1. Compound predicate
2. Compound predicate
3. Compound subject
4. Compound subject
5. The ticket lines for the ferry were long, but the group did not have to wait.
6. They had purchased tickets ahead of time, and their ferry was waiting.
7. The museum at Ellis Island was fascinating; the Statue of Liberty was spectacular!
8. The tourists could come back to Ellis Island the next day, or they could go shopping the next day.
Explanation:
A compound subject is a subject that consists of two or more simple subjects that share a verb or verb phrase. For example, Ellis Island and the Statue of Liberty are both in New York Harbor. The underlined subjects share the verb are.
A compound predicate is a predicate that consists of two or more verbs or verb phrases that share the same subject. For example, The group of tourists took a subway to lower Manhattan and walked to Battery Park. The underlined predicates share the subject the group of tourists.
When it comes to the second part of the question, you need to use the given conjunctions and a semicolon to connect sentences.
When you connect two or more sentences (independent clauses), they become a compound sentence. Independent clauses are connected by a coordinating conjunction (there are seven of them in English: for, and, nor, but, or, yet, and so) preceded by a comma or by a semicolon.
