按要求完成下列各题
(1) writer ( 动词) _________________
(2) sing ( 现在分词形式) _____________
(3) this ( 反义词 ) _________________
(4)family ( 复数) _________________
(5) teacher ( 动词 ) ________________
(6) postman (复数) _______________
(7) it ( 复数 ) ________________
(8) dance ( 名词形式 ) _____________