people不可数名词,为什么还要用how many people are there at the concert?

people不可数名词,为什么还要用how many people are there at the concert? How many people are there at the meeting? 同义句There are people everywhere at the concert. How were the people there?people不可数呀,为什么用were?应该用was呀! people是不可数名词,为什么能用there are a lot of people people不是不可数名词吗?为什么用are而不是is? How many people are there in the passage?是什么意思 how many people are there in the dialogue什么意思 How many __________(people) are there in the __________(read how many people are there in the story? How many people are there in the family?要中文翻译 How many people are there in the room?