1.Are thoes our presents?（同义句,肯否定回答）
同义句 Our presents Are thoes?
肯定回答 yes,thoes are.
否定回答 no,thoes aren't.
2.Some people got off.（否定句,改为一般疑问句并否答）
否定句 Some people didn't get off.
一般疑问句 Did some people get off?
否定回答 No,they didn't.
3.That is his watch（对his提问,对his watch提问,复数句）
对his提问 Whose watch is this?
对his watch提问 What is this?
复数句 Those are his watches.
4.This calculator is from Mum.（对Mum提问）
对Mum提问 where is the calculator form?
5.Jim's family were in his grandparents' house.(对in his grandparents' house提问,改为一般疑问句并否答）
对in his grandparents' house提问 Where were Jim's family?
一般疑问句 Were Jim's family in his grandparents' house?
否定回答No,they weren't.