What can we learn about the origin of COVID-19?
A. Bats have been discovered to be its original cause.
B. Pangolins are now considered the most likely source.
C. It’s identified by comparing sources of various viruses.
D. The virus was found to be genetically similar to those seen in bats.
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Why don’t bats suffer from the coronavirus?
A. Their low body temperature protects them.
Bats have a unique immune system.
C. Bats are the only flying mammal to live in groups.
D. Living in caves helps bats fight against viruses.
What can be inferred from Paragraph 5?
A. The Wuhan Huanan seafood market was blamed for selling bats.
B. The coronavirus was directly transmitted from bats to humans.
C. The intermediate host spreading the virus remains unknown.
D. Bats are not responsible for the outbreak of the coronavirus.
What is the main point the author makes in the last paragraph?
A. Virus-carrying bats should be killed.
B. Humans should stay away from bats.
C. Bats benefit but also harm our ecosystem.
D. Bats could spread viruses during pollination.
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