单项选择题

The police ______ the evidence last time, but they did not.

A．must have found out
B．should have found out
C．must find out
D．could find out
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单项选择题
The children lost their way in the forest, and ______ made matters worse was that night began to fall.
A．what
B．it
C．which
D．that
单项选择题
Frank has told his friends that he always escapes ______ as he has got a very fast car.
A．being fined
B．to be fined
C．having been fined
D．to fine
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