肯定句：I lost my English book yesterday.
否定句：I didn't lose my English book yesterday.
一般疑问句：Did you lose your English book yesterday?
肯定回答：Yes,I did.
否定回答：No,I didn't.
肯定句：She went to Beijing last weekend.
否定句：She didn't go to Beijing last weekend.
一般疑问句：Did she go to Beijing last weekend?
肯定回答：Yes,she did.
否定回答：No,she didn't.
希望能帮上你~