单项选择题

—Are we late
— I'm ______ so.

A. sure
B. certain
C. willing
D. afraid
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单项选择题
The orphan was brought ______ by the villagers and 20 years later he became the village Party branch secretary.
A. up
B. on
C. down
D. off
单项选择题
Mr. Smith is very kind-hearted and capable. You are really ______ in having such a good teacher.
A. sorry
B. sad
C. poor
D. fortunate
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