单项选择题

Every means ______ since then.

A．has been trying
B．have been trying
C．have been tried
D．has been tried
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单项选择题
A．At first sightB．At the beginningC．In the first viewD．From the first
A．At first sight
B．At the beginning
C．In the first view
D．From the first
单项选择题
A．forB．inC．atD．to
A．for
B．in
C．at
D．to
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