() people are no longer worried about whether their food is safe or not can they enjoy a better life.

科目名称：人文英语4

试卷号：10862，11390

题型：词汇与结构(单选题)

题目：() people are no longer worried about whether their food is safe or not can they enjoy a better life.

选项：A.Only if B.If only C.What if

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答案：A.Only if