A B
⑴plenty of water A. 从那时起
⑵pull down B. 大量的水
⑶go boating C. 牙疼
⑷write a letter D. 在……中间
⑸in the middle of E. 写信
⑹from then on F. 去划船
⑺have a toothache G. 拆掉