Understand that the structure of a complex sentence includes an independent clause and at least one dependent clause, and understand how writers can use this structure for effect
WA5ELALA1
For example:
expanding simple sentences through the use of subordinating conjunctions, such as Lea was a great singer although she needed to practise.
replacing simple and/or compound sentences with a complex sentence for effect, such as I get frightened. Loud noises make me frightened. / I get frightened whenever I hear loud noises.