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Instructions: answer the questions 1, 2 and 3 based on the following text.
1 The Swansea-based scientist spent years
piecing together ____ ancient DNA 2 puzzle that
suggests hunting by humans caused this giant
seabird's demise.
5 Dr Thomas studied bone and tissue samples
from 41 museum specimens
7 during a PhD at both Bangor and Copenhagen
University.
9 The findings paint a picture ____ how
vulnerable even the most common
11 species are to human exploitation.
12 Storybook seabird
13 About 80cm (2ft 7in) tall, the stubby-winged
and bulbous-billed great auks
15 used to be found all across the north Atlantic
- from North America through
17 Greenland, Iceland, Scandinavia and the UK.
18 "Being flightless, they were always targeted
____ local people for food and for 12 their
feathers," says Dr Thomas.
21 "But around 1500, when European seamen
discovered the rich fishing
23 grounds off Newfoundland, hunting
intensified."
25 By about 1850, the great auk was extinct; the
last two known specimens were 16 hunted down
by fishermen on Eldey Island, off the coast of
Iceland.
29 The songbird obsession that became an
extinction crisis
31 A third of tropical plants face extinction
32 Five ways to climate proof the world
33 One of these signatures might be a lack of
genetic diversity, suggesting
35 individuals were inbreeding and the species,
as a whole, was becoming
37 vulnerable to disease or environmental
change.
39 "But their genetic diversity was very high - all
but two sequences we found
41 were very different," Dr Thomas said.
42 In fact, the genetic timeline Dr Thomas and
her colleagues were able to create 26 -
published in the journal eLife - showed that, at
the time the intensive great 27 auk hunting
began, the species was doing "really well".
47 "They weren't at risk of extinction at all," said
Dr Thomas.
49 "It emphasizes how vulnerable even the
widespread and abundant species
51 are to this intensive, localized pressure."
Source (adapted): https://www.bbc.com/news/scienceenvironment-50563953.
"They weren't at risk of extinction at all," said Dr Thomas” (l.47)
Which verb tense the sentence above is?
Past Perfect.
Past Continuous
Simple Past
Simple Present
Simple Future