单项选择题

Don't get upset about trivial matters.

A. unexpected
B. unusual
C. unimportant
D. uncertain
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单项选择题
A deadly disease has affected these animals.
A. contagious
B. serious
C. fatal
D. worrying
单项选择题
When she was invited to the party, she readily accepted.
A. willingly
B. suddenly
C. firmly
D. quickly
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