The word “ rudimentary” in paragraph 4 is closest in meaning to
A.Advanced
B.Formal
C.Basic
D.Important

Lewis and Clack had been gone for such long on their expedition that many thought they were dead.
A.Been gone
B.Such
C.Many
D.Were dead

Though it is one of the rarest metals, gold was one of the first to be discover.
A.Though
B.Rarest metals
C.The first
D.Discover

_________(36)
A.announcements
B.positions
C.decisions
D.locations

_________(38)
A.better
B.open
C.difficult
D.worsening

_________(39)
A.motion
B.use
C.sale
D.method

_________(41)
A.by
B.in
C.backwards
D.from

_________(43)
A.options
B.means
C.schedules
D.ways

Let’s go for a long walk, ______ we?
A.Will
B.Do
C.Shall
D.Must

My sister is an expert on wildlife and its ______.
A.Conserve
B.Preserve
C.Reservation
D.Conservation