问题
选择题
—Could you please tell me _____?
--Sure , there is a post office at the end of the road .
A．how can I buy some stamps
B．where I can buy some stamps
C．where I could buy some stamps
D．how could I buy some stamps
答案
答案：B
此题重点考查宾语从句的时态和语序问题，无论哪种句式结构充当宾语从句都要用陈述句语序，从句的时态要和主句的时态保持一致。Could在此处表示语气而不是时态。