Question

【题目】—What cold weather!
—Yes. But it's_______ unusual experience for us. We normally live in a hot place.
A.a
B.an
C.the
D./

Answer 1

【答案】B
【解析】句意： 天气真冷啊！是的，但是这对我们是一个不寻常的经历，我们通常住在炎热的地方。经历的可数名词，要用冠词，unusual不寻常的，读音以元音音素开头，冠词用an,故此题选B