肯定句：There are some people in the meeting room.
疑问句：Are there any people in the meeting room?
否定句：There are not any people in the meeting room.
一般情况下some 用于肯定句中,any 用于否定句和疑问句中,
不会同时出现在句子中的.
如果还有问题,请补充!