Bit or Beat? Bid or Bead?

　　Read each column down.

　　Next, contrast the single and double tense vowels with each other; and the single and double lax vowels with each other.

　　Finally read all four across.

　　Tense Vowels beat seat heat Pete feet miece geese deep neat leaf bead seed he'd impede feed knees he's deed need leave

　　Lax Vowels bit sit hit pit fit miss hiss disk knit lift bid Sid hid rapid fin Ms. his did nid live