21. Choose the word that is a necessary part of the underlined word.
vertebrate
vertebrate
22. Choose the word that is a necessary part of the underlined word.
itinerary
itinerary
23. Choose the word that is a necessary part of the underlined word.
orchestra
orchestra
24. Choose the word that is a necessary part of the underlined word.
facsimile
facsimile
25. Choose the word that is a necessary part of the underlined word.
provisions
provisions
26. Choose the word that is a necessary part of the underlined word.
sustenance
sustenance
27. Choose the word that is a necessary part of the underlined word.
infirmary
infirmary
28. Choose the word that is a necessary part of the underlined word.
purchase
purchase
29. Choose the word that is a necessary part of the underlined word.
dimension
dimension
30. Choose the word that is a necessary part of the underlined word.
wedding
wedding