看起来好难得样子.
1.rain-drain-drainage
2.duck-suck-lucky-stuck.
3.end-bend-_tend trend.
4.eat- beat- teat-east-meant.
5.sea- tea- seat - treat -east.
6.low-slow-slowly - flow.
7.feet-beet-meeting street.
8.sweep-sleep-steep-deep.
9.ill- dill- till- kill- still.
9.it- bit- kit- nit-fit-pitchy
10.cat-fat-bat-rat-eat-chat.
11.ate- late- mate-date- plate.noon- moon- loon- broon.
12.lay- bay- way- way- tay- stay.
13.yard- ward- bard- art - chard.
14.dish- wish- fish- finish.
15.duck- suck- stuck.
终于完成了!