求解一道英语句型转换 They bought the cheapest bike.(对the cheapest)提问.__ bike did they buy?
问题描述：
求解一道英语句型转换 They bought the cheapest bike.(对the cheapest)提问.__ bike did they buy?
答
which
意思是：他们买了哪一辆自行车?、、、、、最便宜那一辆,
表达'那一辆“用which