Six questions

Tag questions
Negative questions

Tokyo is the capital of Japan, isn't it? Yes, it is.
It is a crowded city, isn't it? Yes, it is
There are many stores and buildings in Tokyo, aren't there? Yes, it is
Living cost in Tokyo is very expensive , isn't it ? Yes, it is
Fuji mountain is in Tokyo, isn't it? No , it isn't
Tokyo is the safest city in Japan, isn't it? No, it isn't