[ Tenses ]
The police ____ the suspect for thirty hours, but he still ___ committing the crime.
A. have interrogated/hadn’t admitted
B. will interrogate/didn’t admit
C. are interrogating/doesn’t admit
D. have interrogated/wasn’t admitting
E. have been interrrogating/hasn’t admitted

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A. usually
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The humanity can survive ___ the oxygen that we breathe
A. due to
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