题目内容：
Paragraph 5___________
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答案解析：
单选题：Paragraph 5___________
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Many consumers suspect the safety of irradiated foods and su
Many consumers suspect the safety of irradiated foods and suggest the government
An old friend called on me the day before yesterday.
An old friend called on me the day before yesterday.
It's almost 5 o'clock, time to quit.
It's almost 5 o'clock, time to quit.
Customers often defer payment for as long as possible.
Customers often defer payment for as long as possible.
回答第5空。
回答第5空。