单项选择题

It is a legal ______ for parents to ensure that their children are provided with efficient education suitable to their age.

A. sympathy
B. obligation
C. impulse
D. influence
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单项选择题
The newly-built principal museum seems ______ enough to last a hundred years.
A. steady
B. substantial
C. sophisticated
D. spacious
单项选择题
Victor certainly talks a lot and he's never interested in what ______ has to say.
A. anyone else
B. no one
C. nobody else
D. somebody other
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