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

He checked his car carefully lest it __ on the way.
A．breaks down
B．would break down
C．should break down
D．broke down

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.

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 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.

听力原文：At the Earth Summit in Johannesburg over a year ago, Israel and Jordan agreed to look into building a "Red-Dead" pipeline that would run 320 km along their rugged desert border. Dubbed the "Peace Conduit", the canal would be the biggest Israel-Jordanian joint venture since their 1994 peace treaty. Israeli officials cite the importance of cooperation with former Arab enemies as one of the main reasons they favor the Red-Dead canal over an older "Med-Dead" proposal to take water from the Mediterranean Sea, which would not involve Jordan.
Why did Israelis prefer the "Red-Dead" canal to the "Med-Dead" proposal？
A．Because they wanted to cooperate with their former Arab enemies,
B．Because the Red-Dead canal would run across the desert.
C．Because the Med-Dead canal would be much longer.
D．Because they didn't want to take water from the Mediterranean Sea.