问题
选择题
Please ask the salesgirl ____.
A．how much did it cost
B．how much it costs
C．how much it costed
D．it cost how much
答案
答案：B
考察宾语从句及时态。句意：请问问这个售货员它卖多少钱。可知从句叙述的是一个客观存在的事实，故用一般现在时态。宾语从句一般为陈述语序，疑问词提前，故选B。
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