将下列句子改成一般疑问句,并作肯定回答和否定回答.答:Is this Ging? --Yes,it is./No,it isn't.Is that his brother? --Yes, it is./No, it isn't Is he your good friend? --Yes,he is./No,he isn't.Are these nice pictures? --Yes,they are./No, they aren't.Are these school things? --Yes,they are./No, ...