单项选择题

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

A. maintain
B. improve
C. assess
D. protect

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单项选择题

The economic reform in Japan has been accelerated.()

A. sped up
B. put off
C. slowed down
D. stopped

单项选择题

We are certain that he will get over his illness.()

A. sure
B. happy
C. surprised
D. excited

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