It is ______to consider physical traits.
A. time
B. way
C. timing
D. ways
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All of this brings___some difficult social and moral questions.
A. to
B. on
C. onto
D. up
Will too many parents choose to have children of the same gender leading to a ____of boys or girls?
A. shorting
B. shortage
C. leak
D. leap
He______a villa from his parents.
A. inheriting
B. inherited
C. inherit
D. heritage
This is the building _____which I work.
A. up
B. down
C. to
D. in