Answer:
It is always recommended to start the teachers day speech with by greeting the audience such as good morning, good afternoon or good evening depending upon the time.
Explanation:
Students can also include any quote after the opening sentence which will attract the audience.
Answer: I don't know of the book you read, but..
Authors use historical times and revise them in such a way it's believable, immersive, and informative. They make sure their use of history isn't changed into an outlandish fashion to fit the time it's set in. They usually do this because you can't go back in history and show them what happened, so you must create a fictional yet historical piece to preserve the time.
When you do math you are adding, rooting, graphing etc. When you are doing social studies you are studying people and population. It can also be about geography and how people live today. You are being social.