Our neighborhood used to be quiet.However,these days,strange things are happening in our neighborhood and everyone is unhappy.Zhou Gu,the local school teacher,is extremelyworried.When he was interviewed by the local newspaper,he said,"Every night we hear strange noises outside our window.My wife thinks that is could be an animal,but my friends and I think it must be teenagers having fun.My parents called the police,but they can not find anything strange.They think it might be the wind.I do not think so" What is it? 答案:Monkeys