Answer:
Yes.
Explanation:
A fragment is when the sentence isn't complete. It is the dependent clause and is missing the independent clause. It has missing information that is needed for the sentence to make sense, so it is a fragment.
You don't know who is at school now or what they are doing. That is why it is a dependent clause and is a fragment.
Hang-dog originally means if you say that someone has a hangdog expression on their face, you mean that they look sad, and often guilty or ashamed.
Answer:
<u>1</u><u>)</u><u>Amplitude</u>
<u>2</u><u>)</u><u>Modulation</u>
<u>3</u><u>)</u><u>Frequency</u><u> </u>
<u>4</u><u>)</u><u>Modulation</u>