单项选择题

A great deal has been done to remedy the situation.

A. maintain
B. improve
C. preserve
D. protect
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单项选择题
The policeman wrote down all the particulars of the accident.
A. secrets
B. details
C. benefits
D. words
单项选择题
While we don’t agree, we continue to be friends.
A. Because
B. Where
C. Although
D. Whatever
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