1.They were not here last week.
were they here last week?
简单回答：No,they weren't.
2.John was not tired last night.
was John tired last night?
简单回答：NO,he wasn't.
3.Mary didn't have eggs and meat for lunch yesterday
Did Mary have eggs and meat for lunch yesterday?
简单回答：no,she didn't.
4.There were not many books on my desk this morning
were there many books on my desk this morning?
简单回答：no,there weren't
5.There was not an apple on the tree.
was there an apple on the tree?
简单回答：no there wasn't