The plane had taken off before he arrived at the airport.
举一反三
- It’s too late when we arrived at the airport as the plane ________. A: was taking off B: took off C: had taken off D: has taken off
- 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
- ______ the plane had taken off ______ she left the airport.
- 等他到机场时，飞机已经起飞了。( by the time) he arrived at the airport, the plane had taken off.
- The plane __________ when we got to the airport. A: had taken off B: has taken off C: will take off D: is taking off