Compound-complex sentences are the most complicated sentences, like the name implies. A compound-complex sentence has at least two independent clauses and at least one dependent clause. In simple terms, an independent clause can be a sentence on its own while a dependent clause cannot be a complete sentence.
Compound-complex sentences let us express longer thoughts, with more parts than other sentences let us use. They’re good tools for explaining complicated ideas or describing long chains of events.
C. Set Free is the answer
I think you are right. The form verbs take to express a hypothetical or possible situation.
By reading and going over it :)
I will only do one 9. Everyday