yes,it's sunny ang hot in summer.的问句

Is it sunny ang hot in summer?
yes,it is (sunny ang hot in summer)括号里是可以省略的
有这样一个语法点：用什么提问就用什么回答,公式是：Is it.?
yes,it is (肯定回答)
no,it is not(否定回答)
如果是用助动词提问,道理也一样：do u .?
yes,i do (肯定回答)
no, i do not否定回答)