GilTaruian School celebrated its Teacher's Day with all its teachers in the hotel Green Woods. Different games were played and titles were given to the teachers to enlighten the atmosphere. The celebration started with the distribution of gifts and teachers shared their views about their colleagues as well as the director of the school. A tasty lunch was served to everyone. It was a fun filled day which was enjoyed by everyone. The celebration
wasended with singing a song " Hum Honge Kamyab" and a group photograph.
(Either, "ended with everyone singing the song...", or, "ended with the song...". Use the article "the" here since you know the name of the song. You wrote, "...in the hotel Green Woods". Using "in" here is correct since the celebration probably took place inside the hotel. The more common preposition to use in these cases is, "at".
Thanks in advance!