28、（2018•玉林）---Excuse me．Could you please tell me ______ change some money，please？
---Of course．Walk along the street to the end and you can find a bank．
A．where I can B．where can I
C．where I was able to D．where was I able to
28.A【解析】--打扰一下．你能告诉我在哪里我可以换一些零钱吗？
--当然可以．顺着这条街一直到尽头，你可以发现一家银行．
根据Could you please tell me可知，本题考查宾语从句，宾语从句中一般为陈述语序，选项BD为疑问句语序，排除掉；再根据Walk along the street to the end and you can find a bank，可知这里是给别人指路，表示换零钱这个动作还没有做，所以这里不能用过去时，选项C的时态是过去时，不符合，排除掉．故选A．