spend后面到底是加in还是on?

spend后面到底是加in还是on? spend 带的是in 还是on? spend+on后面能加doing吗? spend on和spend in的用法到底是怎样的? spend time后面+on doing还是spend time doing spend后面加doing还是to do? spend on 和spend in 到底用哪一个? 到底是on holiday还是in holiday 到底是in birthday,还是on birthday because后面不能加什么?还有,在春节是用in还是on the spring festival? 能通过理解来判断动词词组后面是加on in of还是at吗 get involved 后面到底是跟in还是with?