It's not clear - I think you mean, "Either the students or the teachers can join." Or perhaps you mean, "Both students and teachers can join."
Yes, the sentence is grammatically correct.
The sentence "There will be prizes for the students." is grammatically correct. It conveys the message that prizes will be awarded to the students.
Either the teacher or the students ARE to blame for the fire.It would be 'is' if 'students' was in the singular in the sentence (student).
"That was wrong" is a grammatically correct sentence.
This sentence is not grammatically correct. For the sentence to be grammatically correct, the space between "in" and "to" would have to be removed. Therefore the sentence should read "They are into skating."
The sentence is grammatically correct.
The sentence "Rhoda's Crazy" is not grammatically correct. It is missing a verb to make a complete sentence.
My lesson will consist of; me presenting the story to the students. In my lesson, I will present the story to the students.
"You took a test" is grammatically correct. "You gave a test" would mean that you were the one administering the test to someone else.
Yes, it is grammatically correct.
'What a drunkard you are' is a grammatically correct English sentence.
That sentence is grammatically correct.