I stood on the beach. The waves rushed to shore. The seagulls flew overhead. (Combine into a compound-complex sentence.)

While I stood on the beach, the waves rushed to shore, and the seagulls flew overhead.

Explanation:

compound-complex =  (at least one) dependent clause + two independent clauses connected together

One of the three original simple sentences (independent clauses) was converted into a dependent clause by starting it with an adverb (while).

i love cake

and don't hate

i know i'm fat

but what's wrong with that

i cant rap

but im sure ya know that

its just for fun

so quit hatin' son

~courtney