单项选择题

No one doubts ______ it is true or not.

A．whether
B．if
C．that
D．what
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单项选择题
She asked me how long ______ to build the church.
A．it was taken
B．did it take
C．it had taken
D．does it take
单项选择题
The doctor insisted that his patient ______ .
A．that he not work too hard for three months
B．take it easy for three months
C．taking it easy in three months
D．to take a vacation for three months
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