句子有什么错误,.National Day is over four days,the first four days

National Day has over four days ,the first four days i have been stay at home for a cold。 再问： The number of visitors to tourist attractions during the holidays up to more than ten million people。这个句子怎么改，谢谢 再答： The number of visitors to tourist attractions during the holidays is up to more than ten million people。缺谓语再问： Afternoon, we went to KTV to singing。 In the bus, I introduced her to a Beijing scenic spots。 She very interested in cultural of Beijing。 再答： Afternoon, we went to KTV to sing。 In the bus, I introduced her to the Beijing scenic spots。 She was very interested in the cultural of Beijing。我睡了，别问了