单项选择题

The news _______ heard everywhere.

A．had
B．have been
C．was
D．are going to be
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单项选择题
_______ WAP technology, people can do their work anywhere anytime.
A．Use
B．Using
C．Being used
D． Used
单项选择题
The crewman switched on portable flashlights as the engineer __ the scene.
A．has surveyed
B． surveys
C．was surveying
D．is surveying
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