will you be still in beijing next month?i am afraid not.i____to New York long before thenA have flown B will fly C am flying D will have flown 为什么选D
问题描述:
will you be still in beijing next month?i am afraid not.i____to New York long before then
A have flown B will fly C am flying D will have flown 为什么选D
答
将来完成时,意思是下个月我已经飞到纽约了.所以选D