题目内容
15、Since the baby milk powder was found to be polluted, there has been universal doubt _____ other food products are safe to eat.
A. whether B. that C. what D. how
试题答案
15、A.
解析: 考查名词性从句.在 doubt 后面带有同位语从句, 因含有“是否”之意, 故应填whether。
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Since the baby milk powder was found to be polluted, there has been universal doubt _____ other food products are safe to eat.
A. whether B. that C. what D. how
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