21.
Choose the word that is a necessary part of the underlined word.
vertebrate

22.
Choose the word that is a necessary part of the underlined word.
itinerary

23.
Choose the word that is a necessary part of the underlined word.
orchestra

24.
Choose the word that is a necessary part of the underlined word.
facsimile

25.
Choose the word that is a necessary part of the underlined word.
provisions