There are thousands of stray（流浪的） dogs in Sochi，Russia，where the 22nd Winter Olympic Games are to take place．The stray dogs tend to gather near Olympic construction sites where they have gotten food and shelter from workers．Dogs have even been able to get inside the Olympic Park．
    But as the games are drawing near，the city has turned to a company to catch and kill the animals so they don't bother Sochi's new visitors or even wander into an Olympic event．
    Alexei Sorokin，director general of Basya Services，said that his company was asked to exterminate the animals throughout the Olympics．Sorokin described his company as being involved in the "catching and disposing" of dogs，although he refused to say how the dogs would be killed．The stray dogs have been causing numerous problems，Sorokin said，including "biting children，barking loudly and polluting the environment"．What's worse，they might spread rabies，a deadly disease that can be easily communicated and passed on to human beings，he added．
    Dina Filippova says the city hall is using the Olympics as an excuse to cover an ongoing practice． "We should understand that it is done not only before the Olympics but constantly，" she said in downtown Sochi，where she was trying to find homes for seven strays she recently rescued near the Olympic Park． "Two killers from that company work for the city to kill 300 dogs a month．It is not humane，" she added．
    Sergei Krivonosov，a lawmaker from the Krasnodar region，last year supported the dog killing．Krivonosov said taking the dogs off the street was Russia's "responsibility to the international community and that their elimination is the quickest way to solve this problem．" He admitted，however，that this is "not the most humane way" of dealing with the problem and that the city should encourage dog shelters．
    Sochi city hall last year announced a plan "to catch and dispose" of strays in Sochi - a move that animal activists strongly protested．The city promised to give up the practice step by step and build more animal shelters for strays instead．Activists say there is no evidence that a shelter has been built．But city hall said on its website that it had opened a dog shelter Monday for 100 dogs．

（1）Why do the stray dogs tend to gather near Olympic construction sites？

A

A

A．Because they can get food and shelter there．
B．Because the construction workers are friendly．
C．Because nobody catches and kills them there．
D．Because they are free to enter the Olympic Park．
（2）The underlined word "exterminate" in Paragraph 3 means

C

C

．
A．protect
B．collect
C．kill
D．handle
（3）What is the most serious problem caused by stray dogs？

D

D

A．Biting children．
B．Barking loudly．
C．Polluting the environment．
D．Spreading rabies．
（4）We can infer that Dina Filippova

B

B

．
A．is an Olympic volunteer in Sochi
B．is against the dog-killing plan
C．is a killer from Basya Services
D．is building homes for seven strays
（5）What did the city promise to do？

B

B

A．To stop killing dogs right away．
B．To build more animal shelters．
C．To punish those killing stray dogs．
D．To allow stray dogs more freedom．