No. 2.
1. Rain, raid, said, slid, slip, slop, slow, snow. 2. Rags, rats, rate, sate, sale, salt, silt, silk. 3. Mill, bill, bell, belt, bent, cent. 4. Sin, win, won, woe. 5. Sold, cold, colt, cost, lost. 6. Line, lone, lore, core, cord. 7. Nay, nag, lag, leg, lea, yea. 8. Glue, glee, flee, fled, sled, seed, send, mend.