单项选择题

Throughout most of their lives, human beings perpetually learn and increase their mental capacities.

A. actually
B. readily
C. finally
D. constantly
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Living in different cities, Linda and Lisa are still intimate friends.
A. close
B. good
C. friendly
D. poor
单项选择题
It is pleased for me to have met you here.
A. a pity
B. glad
C. sad
D. unwilling
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