26.
Choose the word that is a necessary part of the underlined word.
sustenance

27.
Choose the word that is a necessary part of the underlined word.
infirmary

28.
Choose the word that is a necessary part of the underlined word.
purchase

29.
Choose the word that is a necessary part of the underlined word.
dimension

30.
Choose the word that is a necessary part of the underlined word.
wedding