MISSING TRIOS XLI

For each numbered group, fill in the blanks with the same three missing letters to complete 7, 6, 5, 4, and 3-letter words. The letters may be filled in any order. The missing trio is different for each group. 

1.  _ E _ _ GHT

     M _ D_ _ E

       _ _ EA _

       W _ _ _

          _ _ _   

2.  G _ M _ R _ P

       _ _ _ BLE

        PR _ _ _

         J _ _ _

          _ _ _   

3.  _ _ E _ TER

     _ N _ _ EM
      _ R _ S _
        _ _ _ W
         _ _ _

4.  _ UT _ A _ D
       _ _ NDE _
        _ _ NE _
        _ _ _ K
         _ _ _

5.  B _ _ C _ ET

      T _ N _ E _

       W _ E _ _
         _ _ N _
           _ _ _

Answers:

1. The letters are LID:

          DELIGHT

           MIDDLE

             IDEAL

             WILD

              LID

2. The letters are DUO:

         GUMDROP

           DOUBLE

            PROUD

             JUDO

              DUO

3. The letters are HAT:

          THEATER

          ANTHEM

           TRASH

            THAW

              HAT

4. The letters are ROW:

         OUTWARD

          WONDER

           OWNER

            WORK

              ROW 

5. The letters are ARK:

          BRACKET

           TANKER

            WREAK

             RANK

              ARK