Concept checking is the process of a teacher asking questions to their students to make sure they understand the vocabulary/grammar you have taught them. =)
One of the basic advantages of of a good communication is that it helps get rid of problems that arise out of communication barriers. instantly solving problems, doubts and crisis management issues can be handled with the help of communication.
Your mother. Because you should be reading instead if trying to cheat. Maybe if you read it will benefit you, you cheater
The answer is a. metaphor