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As a grassroots singer, she reads everything she can get hold of and catch every opportunity she meets up with so as to gain____progress.

A．mild	B．widespread
C．steady	D． average

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This nationwide smog should serve as a reminder to all, indicating a high time that we____ on what we've done to the environment.

A．have reflected	B．are reflecting
C．will reflect	D．reflected

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more effectively with others, more and more people equip themselves with a higher education.

A．Compete	B．To compete
C．Being competed	D．Competing

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The new policy allows a couple to have a second birth____either is an only child.

A．if only	B．on condition that
C．unless	D．until

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It’s crazy of you to spend more time playing computer games than you _______ studying.

A．are	B．have
C．do	D．will

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