Question

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

Answer 1

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 

Answer 2

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