Что не правильно в предложении: my opinion, the birthday of the most important holidays; it was become the fun; i have waited for this; idea of how you can celebrate

in my opinion, the birthday  is  one of the most important holidays;

it was  funny;

i have  been waiting for this birthday; или i have  been waiting for it

i have an idea  how you can celebrate      или

the idea of your  celebrating is 

in my opinion, birthday is the most important holiday или one of the most important holidays

it has become fun

i have been waiting fot this

i have an idea how you can celebrate 

1.  sally, i have someone here to meet you.2.  look, these insects are everywhere, all over the kitchen.3.  is there anything  to drink in the fridge? 4.  i am sure somebody  is in the back garden. go and have a look.5.  we can't find the dvd anywhere.6.  his talk was very good and everyone in the room was interested.7.  there was nothing cheap in that shop so we went to the supermarket to buy the clothes.8.  there wasn't anybody in the office so we couldn't buy the tickets.9.  i'm sure you put the passports somewhere. just try to remember.10.  i walked into the room but noone  said hello.11.  did you see anyone famous at the music concert? 12.  the customs officer looked through everything in my suitcase. it took him ten minutes.13.  we arrived late and there was nowhere to sit so we were standing for two hours.14.  i neeed to think of something to buy for mum's birthday.15.  there was a lot of smoke and everybody  went quickly to the exit.

1i had something nice for lunch. -  i enjoyed my lunch. 2 i ate nothing for lunch. -  i had no food for lunch. 3 everything on the lunch table was delicious. -  my lunch was fantastic – all the food was great. 4 peter said goodbye to everyone in the company. -  he spoke to all the people in the company. 5 peter said goodbye to no one in the company. -  he didn't speak to any of the people in the company. 6 peter said goodbye to somebody but i don't know who! -  he said goodbye to one person. 7 you didn't leave the money anywhere in the living-room. -  you certainly didn't leave the money in the living-room. 8 you left the money everywhere. -  you left the money all over the house. 9 you left the money somewhere in the house. -  i'm sure the money is in the house.