单项选择题

Their parents once lived under very severe conditions.

A. sound
B. hard
C. strict
D. tight
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单项选择题
We are certain that he will get over his illness.
A. sure
B. surprised
C. happy
D. excited
单项选择题
It seems highly unlikely that she will pass the exam.
A. very
B. completely
C. usually
D. mostly
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