The more _____ the robot has with humans, the more it learns.
A. intelligence
B. interference
C. interpretation
D. interaction
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Police suspect there may be a _____ between the two murders.
A. relative
B. relation
C. link
D. ally
The President is to put forward new _____ for resolving the country's crisis.
A. parliaments
B. proposals
C. passports
D. phenomena
_____ someone or something is the act of talking about them or mentioning them.
A. Reference with
B. Relevance to
C. Relevance with
D. Reference to
The _____ from tourism is the biggest single item in the country's invisible earnings.
A. revenue
B. recession
C. renewal
D. revolution