单项选择题

A great deal has been done to better the situation.()

A. change
B. improve
C. assess
D. harm

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单项选择题
What makes a major success in Los Angeles is the strength of his public support().

A.concentration
B. intensity
C. conservation
D. stress
单项选择题
It seems highly unlikely that she will pass the exam().

A.very
B. completely
C. usually
D. mostly
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