Efev ffve vfefv fvevf vfevfe so becuase comnunists
It matters the subject or requirement. Learning can be good when you are learning something big and important and learning can be bad when learning bad habits and more. Hope this answers your question :D
It means that teeth are very helpful because they help you chew your food so therefore we can digest it and maintain good health
I think it might possibly be D. sorry if it is not correct