单项选择题

Cindy shut the door heavily and burst into tears. No one in the office knew（）she was so angry.

A. where
B. whether
C. that
D. why

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Bats are surprisingly long-lived creatures, some（）a life span of around 20 years.

A. having
B. had
C. have
D. to have
单项选择题
The issue is how to（）of radioactive waste.

A. deal
B. dispose
C. disposal
D. do
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