[ Grammar ]
Some animal ………. are at risk of becoming extinct.
A. forms
B. species
C. sorts
D. classes

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Prepositions › ViewWhile listening to music, many people absorb_ their work
A. at
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She never comes late. She _______ have been held in traffic.
A. can’t
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A documentary about the wildlife_________ on TV tonight.
A. show
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C. showed
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