单选题（题干缺失）

A、 It is being tested.

B、 It is being used.

C、 It is being replaced by a better robot.

D、 It is being developed.

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A、To replace ventilation systems.

B、To install LED lights in all classrooms.

C、To transition schools to solar energy.

D、To transition schools to wind energy.

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A、No one followed the easier rules.

B、Rules have to be tough.

C、People will be more likely to follow them.

D、He does not believe that the rules need to be harsh.

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A、Mandarin.

B、French.

C、English.

D、Spanish.

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A、Dismissive.

B、Worried.

C、Curious.

D、Enthusiastic.

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A、Put up signs, flyers and posters.

B、Create a rule leading to a large fine.

C、Put the notice on the back of the tickets.

D、Make a notice when tickets are purchased.

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A、The disappointment of a major loss.

B、The mess left over by an overexcited crowd.

C、The best moment of the event.

D、The happy cheer of the big crowd.

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A、To clean up after ourselves.

B、To hold the door open for others.

C、To be polite and kind to others.

D、To help those in need.

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A、Uganda.

B、Botswana.

C、Namibia.

D、Rwanda.