your T-shirt is so cool.could you tell me ----a\ where you buy itb\ where do you buy itc\ where you bought itd\ where did you buy it为什么答案是c说明理由

your T-shirt is so cool.could you tell me ----
a\ where you buy it
b\ where do you buy it
c\ where you bought it
d\ where did you buy it
为什么答案是c
说明理由

where引导从句,用陈述语气,所以b、d排除.因为已经穿着了,所以买的动作是过去发生的,用过去时,选c

因为这叫T恤实在过去某一时刻买的，所以用一般过去式。又根据题意知，应用陈述句语序，所以选C。