When they arrived at the airport, the plane _______.
A: already set off
B: set off already
C: had already set off
D: has already set off
A: already set off
B: set off already
C: had already set off
D: has already set off
举一反三
- When we arrived at the airport, the plane ______ . A: already took off B: took off already C: had already taken off D: has already taken off
- When I got to the airport, the plane ______. A: already took off B: had already taken off C: C. has already taken off
- As soon as we got to the airport, we found that the plane_____. A: had already taken off B: already took off C: was already taking off D: was already taken off
- Tom and his father___America last week,and arrived there this Sunday morning.( ) A: set for B: set off C: set off for D: set off to
- His preference is that we ________ now instead of waiting. A: will set off B: should set off C: shall set off D: would set off