A-A+
This is the (longest)flight I (have ever taken
问题详情
This is the (longest)flight I (have ever taken). By the time we get to Los Angeles, we (had flown) (for)13 hours.
A.longest
B.have ever taken
C.had flown
D.for
参考答案
正确答案:C
解析:到将来的某一个时间已经完成某事,应该用将来完成时态,故将had flown改为will have flown。