In paragraph 4, the author suggests that Beowulf was discovered in the
A．first century
B．ninth century
C．eleventh century
D．seventeenth century

Which of the following statements is false？
A．People know exactly how and why humans domesticated the first dogs.
B．People learned to selectively breed dogs for certain specific tasks.
C．Of all the domesticated animals, dogs seem closest to their owners.
D．Wolves raised in captivity still fall to understand human gestures:

What is perhaps the unique skill that dogs possess？
A．Dogs can be domesticated.
B．Dogs can communicate with wolves.
C．Dogs can communicate with humans.
D．Dogs can be raised in the wild first and later still be domesticated.

Two new bridges __ on the river by the end of next year.
A．will be built
B．will have been built
C．are going to be built
D．have been built

What was today's most popular breed of dog, the Labrador was originally bred for？
A．For chasing prey.
B．For herding livestock.
C．Hauling nets and retrieving fish for the fishermen.
D．For keeping accompany.

A．Juice.
B．Tea.
C．Coffee.
D．Beer.