单项选择题

For some time now, world leaders（）out the necessity for agreement on arms reduction.

A．had been pointing
B．have been pointing
C．were pointing
D．pointed

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单项选择题
The old couple will never（）the loss of their son.

A．get over
B．get away
C．get off
D．get across
单项选择题
The experiment requires more money than（）.

A．have been put in
B．being put in
C．has been put in
D．to be put in
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