A synthesis<span> is a written discussion that draws on one or more sources. It follows that your ability to write syntheses depends on your ability to infer relationships among sources - essays, articles, fiction, and also nonwritten sources, such as lectures, interviews, observations.</span>
Answer:
irritated
Explanation:
irritated by the lack of attention, the frustrated customer began to shout his demand for a refund.
When somebody puts " ing " at the end of a word (verbs) its become " happening " for example: watch- watching * present noun.
And to it's in future like I'm going to sleep it's when you are going to do it
