Since the baby milk powder was found to be polluted, there has been universal doubt _____ other food products are safe _____.
A.that; to eatB.whether; to be eaten
C.that; to be eatenD.whether; to eat
D

試題分析:本題中的名詞doubt后面是一個同位語從句,因為前面的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)行補充說明。因為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。
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