is this correct?

CORRECT THE SENTENCE - This is one of the most remarkable events that has happened this century.

How do I use apostrophes correctly? My grammar isn't always the best (whose is?) and I'd like to know, aside from contraction...

My teeth do hurt? Or my teeth does hurt?

I always thought that we have to say he doesnt, but in movies and tv everybody says "he dont care'', so that would be right o...

Algebra I Okay, so we got this cylinder with a base with a 5 inch radius. The height is 9. The area would be 246.5 and the vo...

Okay I should explain that better-would you say 'a historic day' or 'an historic day'? I've heard it both ways and I don't re...

I bought the present that I gave him it for Christmas in Japan??

like i need help with sentence structure,organization,mechanics,

I'm not finished yet but I want to make sure everything is correct before I go on. Hay una muchacha llamada Helen. Tiene qui...

Okay so in class my teacher may make a mistake and im usually the first to correct them. Now that I see it I think its annoyi...