单项选择题

In architecture (建筑学), a vault (拱顶) is a proof or ceiling in the ______ of an arch.

A．form
B．figure
C．shape
D．appearance
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单项选择题
A friend of mine returned to his house after a holiday only to find it ______ broken into.
A．be
B．was
C．had
D．had been
单项选择题
—What did the children do in school—Their teacher ______ a short talk about their holiday.
A．made them all to given
B．is getting them all giving
C．made them all giving
D．got them all to give
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