单项选择题

A free lookout ______ the hills with binoculars.

A. scanned
B. scrutinized
C. explored
D. swept

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单项选择题

They are well ______ with each other since they were little kids living in the same community..

A. identified
B. recognized
C. acknowledged
D. acquainted

单项选择题

If human being want to enjoy the long-lasting peace and happiness, they must avoid falling into war and live in ______ with each other.

A. coincidence
B. harmony
C. uniform
D. alliance

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