Could you tell me ()?About 2 hoursA how long it takes to fly to Guilin B how long it took to fly …
问题描述：
Could you tell me ()?About 2 hoursA how long it takes to fly to Guilin B how long it took to fly …
C how long does it take to fly … D how long did it take to fly …
答
A.后面是宾语从句,所以用陈述语气,这里应该用一般现在时,所以选A