Since the baby milk powder was found to be polluted, there has been universal doubt other food produ

【题目】Since the baby milk powder was found to be polluted, there has been universal doubt _____ other food products are safe _____.

A. that; to eat B. whether; to be eaten

C. whether; to eat D. that; to be eaten

【答案】C

【解析】

试题分析：考查同位语从句和不定式用法句意：既然婴儿奶粉被发现已经被污染了，很多人都怀疑其他的食物是否可以安全食用。本题中的名词doubt后面是一个同位语从句，因为前面的doubt用语肯定句中，所以使用whether引导该同位语从句，表示不确定的事情。第二空使用不定式to eat对句子的主语other food进行补充说明。因为safe是对主语的性质特征进行的说明，故使用不定式的主动语态。如：The problem is easy to solve。这个问题很容易解决，故C正确。