I'm sorry, I don't have enough info to answer the question :) Can you explain?
Answer:second one I think
Explanation:
I think
The correct definition of Wikipedia is it’s essentially a free online encyclopedia. I hope this helps!
I think this sentence would be better if we put an additional 'the' before the word 'students'
So the sentence will become :
it could be dangerous to carelessly teach grammar to the students
hope this helps
