题目内容

—How did she get infected?
—She _______ the viruses without any protection．
A．exposed toB．had exposed to
C．was exposed toD．been exposed to
C

试题分析：考察固定搭配。固定搭配expose sb to sth使某人暴露在….之下；接触….；转换为be exposed to…接触…；句义：—她是怎么被感染的？—没有任何保护就直接接触了病毒。故C正确。
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