Question

【题目】— Have you ever worked as________volunteer during the COVID-19 pandemic(新冠疫情)?

—Yes. It was ________unforgettable experience for me.

A.an; anB.an; aC.a; anD.a; a

Answer 1

【答案】C

【解析】

句意：——你在新冠疫情期间曾做过志愿者吗？——做过。这对我来说是一次难忘的经历。

考查冠词的用法。an不定冠词表泛指，用于元音音素开头的词前；a不定冠词表泛指，用于辅音音素开头的词前。分析句子可知，两处均表示泛指，第一处用于辅音音素开头的volunteer前；第二处用于元音音素开头的unforgettable前。故选C。