Among the choices, option B. Hasn't, is a singular contraction. "Hasn't" is the shortened word for "has not". The rest of the choices are plural contractions: Don't from do not, Haven't from have not, and Weren't from were not.
You know what nvm
It’s fine nvm
Nvm then I’ll ask someone else
D. all these oppressed me.
B) The speech that the computer science expert gave regarding online data mining was filled with information and was also very entertaining
in one of my health classes, the teacher was the most helpful i’ve ever had, yes, teachers are supposed to be helpful but he was the best at it. He always pushed us to be better people and to better understand the world. This teacher was bright and creative, and he always came up with new things to support us to keep going. I’ve had good teachers before but he topped all of them, and i appreciate how hard he tried to keep us focused.
not sure if that answered your question but if you want to write it differently i think you should keep the topic the same throughout and convince people reading why you believe your teacher was good/bad :)
