1.He was very fat last year.
否定句 He wasn't very fat last year.
疑问句 Was hevery fat last year?
2.Her purse lost yesterday.
否定句 Her purse didn't lose yesterday.
疑问句 Did her purse lose yesterday?
3.There was a thief over there just mow.
否定句 There wasn't a thief over there just mow.
疑问句 Was there a thief over there just mow?
4.John was addicted to surfing the internet three years ago.
否定句 John wasn't addicted to surfingthe internet three years ago.
疑问句 Was John addicted to surfing the internet three years ago?