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
There is no doubt ______ the company has made the right decision on the sales project.
A．why
B．that
C．whether
D．when
单项选择题
You must insist that students give a truthful answer ______ with the reality of their world.
A．relevant
B．simultaneous
C．consistent
D．practical
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