Since May 8， Boston Dynamics， doglike robot， Spot， has been in use at BishanAng Mo Kio Park in Singapore to help encourage social distancing during the COVID19 pandemic （新冠肺炎疫情） according to a report in the South China Morning Post．

    Singpore’s government is funding the experiment of the robotic dog， which will last for two weeks at the park during offpeak（非高峰的） hours．

    "The robot isn’t enforcing （强制 ）． It’s just giving people information and encouraging them， "Boston Dynamics founder Marc Raibert told CNBC． "When Spot is patrolling（巡逻）the area， there’s a parks officer nearby who can do whatever enforcement he decides is suitable． "

    Cameras fixed on Spot will scan the surroundings and help officers work out the number of visitors in the park， but they cannot read faces and won’t collect any personal information． It also carries a loudspeaker to broadcast a prerecorded message to remind visitors of the importance of social distancing．

    Without enough manpower， Singapore is turning to robotics to reduce the manpower required for park patrols and remind people about the risks they may be putting themselves and others in．

    The question， however， is whether their use of Spot will be a good tool or will or only attract more people to it instead．

    If the twoweek experiment proves successful， the government will consider using Spot at the park during peak hours． Singapore will also do studies to see if it’s worth using other Spots in other parks． Already， Singapore engineers are trying to improve Spot， making it tell if people are together in a group or strangers passing on the grass．

    No one knows if Spot will stay after the pandemic is gone， but one thing is for sure： the robot is the hardest working dog in the world．

（1）Why is Spot used at BishanAng Mo Kio Park？　　

A． To draw visitors， attention to it．

B． To help encourage social distancing．

C． To read and record visitors， faces．

D． To help collect private information．

（2）The underlined word "they" in Paragraph 4 refers to（指的是）　　．

A． visitors

B． strangers

C． cameras

D． officers

（3）What can we learn from the last 3 paragraphs？　　

A． The experiment is still in progress．

B． The use of Spot proves to be a good tool．

C． Spot will stay after the pandemic is over．

D． Singapore will no longer need other Spot robots．

（4）According to the passage， which of the following is TRUE？　　

A． Spot scares people into keeping a distance in public．

B． Spot patrols the park for two weeks during peak hours．

C． Spot can tell people together in a group from strangers passing by．

D． The parks officer nearby decides on the enforcement instead of Spot．