When___you___the bike?Last month.A have,bought b had,bought c do,buy d did,buy

问题描述:

When___you___the bike?Last month.
A have,bought b had,bought c do,buy d did,buy

选D,是问过去的时态,东西是过去买的,不能用完成时,完成时表示的是过去的动作对现在的影响