Does their friends often help them?的否定肯定回答是什么?

Their friends often help them.的一般疑问句是什么? Did you help them clean their room?做肯定回答 let me help you 的肯定和否定回答是什么 Do you always help your friends?做肯定否定回答 does cathy often help her mother do housework?这句话的肯定回答 Does your brother often play the piano 的否定肯定句是什么? Are they good friends?的肯定回答和否定回答 Would you like to help me with my english 的肯定的否定回答分别是什么 does your brother often watch football?作否定回答是什么? We are friends.的否定句和一般疑问句和肯定回答还有否定回答 I often help them with their Chinese同义句 he often help them with their English这话对吗