单项选择题

The traffic was very heavy, ______, and so we arrived after the start of the program.

A．this was completely unexpected
B．which was completely unexpected
C．that was completely unexpected
D．it was completely unexpected
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单项选择题
Out of the elementary plane geometry developed by the Greeks ______ we use today.
A．the theoretical geometry evolution
B．evolved the' theoretical geometry
C．the evolution of theoretical geometry came
D．the theoretical geometry came
单项选择题
______, he never alters a decision.
A．What may come
B．May what come
C．Come what may
D．May come whatever
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