问题
选择题
A: You look very nice in your new dress today.
B: Oh, really? I _________ it when it was on sale.
A．buy
B．bought
C．have bought
D．will buy
答案
答案：B
句意：今天你穿这件连衣裙看起来很不错。——哦，真的吗？我是在它减价处理的时候买的。结合语境可知下文描述的是过去某时进行的动作，故用一般过去时态，选B。