Answer: a. practice frequently & carefully prepare
Explanation: because he doesn't know the material so that's why he should practice and for him to prepare quickly and it does not say anything about him being scared.
Answer:
FALSE because "Sit!" is a sentence as when you instruct a dog to sit that is a whole sentence on its own.
The main idea or thesis you are trying to answer
Inventors (and we also need some answer choices next question