36.
Choose the word that is a necessary part of the underlined word.
saddle

37.
Choose the word that is a necessary part of the underlined word.
dome

38.
Choose the word that is a necessary part of the underlined word.
glacier

39.
Choose the word that is a necessary part of the underlined word.
directory

40.
Choose the word that is a necessary part of the underlined word.
contract