单项选择题

If ever again（）happens an accident like this, we will have only ourselves to blame.

A．it
B．so
C．there
D．that

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单项选择题
The student I am teaching this year is much more intelligent than（）I taught last year.

A．that
B．one
C．the one
D．those
单项选择题
The man in the corner confessed to（）a lie to the manager of the company.

A．have told
B．be told
C．being told
D．having told
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