"After eating three slices of banana cream pie" as a complex sentence

After eating three slices of banana cream pie, the boy slept off.

A complex sentence refers to a sentence that has both the dependent clause and the independent clause.The dependent clause can stand on its own while the independent clause cannot stand on its own.In the sentence, "After eating three slices of banana cream pie, the boy slept off", the independent clause is "After eating three slices of banana cream pie" while the dependent clause is "the boy slept off".

Read related link on:

thx
explanation: