找错误 1 the dog looks smart,isn't it?2 the No.18bus stops here

The dog looks smart,isn't it?应该改成 The dog looks smart,doesn't it?
look是行为动词,不是be动词,反义疑问句里的助动词应该用does或者doesn't；又因为主句是肯定句,所以反义疑问句里用doesn't
The No.18 bus stops here,does it?应该改成The No.18 bus stops here,doesn't it?理由见上一句的解释