【题目】—Which is your best-selling car?
—Here are three types of cars for you to choose from, all ________ well this year.
A.of which sellB.of them sellC.of which are soldD.of that are sold
在线课程【答案】A
【解析】
考查非限制性定语从句。分析句子知，cars为先行词，为物，故用of which。sth sell well为固定结构，意为“…卖的好”。故选A项。