With which of the following conclusions would the author probably agree?
A.The discovery of microfossils supports the traditional view of how terrestrial life evolved.
B.The evolution of terrestrial life was as complicated as the origin of life itself.
C.The technology used by paleontologists is too primitive to make accurate determinations about ages of fossils.
D.New species have appeared at the same rate over the course of the last 400 million years.

The word "extracted' in paragraph 3 is closest in meaning to _________ .
A.removed
B.located
C.studied
D.preserved

The word "they" in paragraph 3 refers to ________ .
A.oceans
B.specimens
C.rocks
D.shores

The word "drastic" in paragraph 2 is closest in meaning to _________ .
A.radical
B.Progressive
C.widespread
D.risky

The word "entombed' in paragraph 3 is closest in meaning to __________ .
A.crushed
B.trapped
C.produced
D.excavated

The word “counteracted” is closest meaning to _______ .
A.suggested
B.negated
C.measured
D.shielded

_____(72)
A.learning
B.to learn
C.with learning
D.learn

_____(73)
A.interpret
B.give out
C.transfer
D.present

_____(75)
A.on
B.for
C.by
D.in

_____(77)
A.quite
B.hardly
C.truly
D.really