单项选择题

______, a telephone is one of the most useful things in the world when it's working properly.

A．As a whole
B．On the whole
C．Above all
D．As the whole
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单项选择题
______, all the sophomores in colleges and universities must take part in the College English Test.
A．Beginning that year
B．Beginning on that year
C．Beginning in that year
D．Beginning that year on
单项选择题
Burton said he could not swim until the ______ came in because the sea was too far out.
A．current
B．tide
C．water
D．flood
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