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2. Smoking is ________to lung cancer and many other diseases.
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3. The report says ________of new homes are up 20% over the last six months.
The police are gathering ________ to help them prove who killed the bank clerk.
3. He was in a very bad mood when he arrived, and that set the tone ______ the whole meeting.
4. Our supplies had run ______and all we could do was wait.
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