Carol and John hsn't/haven't found them?,该用hasn't还是haven't

Carol and John hsn't/haven't found them?,该用hasn't还是haven't 是hasn't还是haven't haven't. ____ ,she hasn't found out the fact ,I haven't,eihter. ____ ,she hasn't found out the fact ,I haven't,eihter didn't haven't He hasn't been to Beijing.I haven't,either. hasn't got 和haven't got的区别 have found 反义疑问句用什么 don't还是haven't? 英语为什么用have't而不用hasn't：kate haven't got any brothers. 现在完成时haven't clean还是haven't cleaned? Tim hasn't been to London and I haven't been there ,either.的