Which of the following sentences have the compound-complex structure? Select all that apply

Jorge wanted to do well in school, so he quit his job because he needed more time to study.

Mr. Benson likes to read the textbook, study the workbook, and memorize the glossary.

Dr. Nelson installed a fish tank because he enjoys fish, but his staff does not like the new tank.

Sadly, Patricia's dog Arnold ran away from home last week, and he never returned.

After Robert comes home from work each evening, he remembers to check his mailbox.

. After I worked in my garden all day, I was extremely exhausted, so I took a nice long nap.

Your answer would be A (Jorge wanted to do well ...), C (Dr. Nelson installed a fish tank ...), and E (After I worked my garden all day ...).

Explanation:

Compound-complex sentences are made of two independent clauses and one or more dependent clauses. An independent clause can stand alone as a sentence because it represents a complete thought. On the contrary, dependent clauses fail to do so; they depend on the main clause to complete their meaning (see 2).

1) Jorge wanted to do well in school

2) * Because he need more time to study

1 is a grammatically correct sentence because it represents a complete thought whereas 2 is not complete so it can't stand on its own.