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

 

D

【解析】

試題分析：本題中的名詞doubt后面是一個同位語從句，因?yàn)榍懊娴?/span>doubt用語肯定句中，所以使用whether引導(dǎo)該同位語從句，表示不確定的事情。第二空使用不定式to eat對句子的主語other food進(jìn)行補(bǔ)充說明。因?yàn)?/span>safe是對主語的性質(zhì)特征進(jìn)行的說明，故使用不定式的主動語態(tài)。如：The problem is easy to solve。這個問題很容易解決。句義：既然嬰兒奶粉被發(fā)現(xiàn)已經(jīng)被污染了，很多人都懷疑其他的食物是否可以安全食用。故D正確。

考點(diǎn)：考查同位語從句和不定式用法

 

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