按照要求改写句子。
(1)This is a pencil. (改为一般疑问句)
                          a pencil?
(2)I like elephants. (改为一般疑问句)
                          like elephants?
(3)Are you Wang Bing? (作肯定回答)
            ，I             .
(4)Do you like monkeys? (作否定回答)
            ，I             .
(5)Eat this apple. (改为否定句)
                          this apple.
(6)That is a toy car. (对划线部分提问)
                         ？
(7)These are chickens. (对划线部分提问)
                          these?