-- Why do you feel so unhappy?
--Bad luck . When I arrived at the airport, my flight __________.
A.took off | B.would take off |
C.was taking off | D.had taken off |
-- Why do you feel so unhappy?
--Bad luck . When I arrived at the airport, my flight __________.
A.took off | B.would take off |
C.was taking off | D.had taken off |