In the course of ________, some birds have lost their power of flight and started to live on land.
举一反三
- In the course of ________________, some birds have lost the power of flight.
- 477 We have lost our flight plan after a flight ________ computer _____. [音频]
- Were it not for the fact that there is dense fog in the destination airport, the flight ______ there? A: would land B: wouldn't land C: wouldn't have landed D: would have landed
- Land belongs to the city; there is _____ thing as private ownership of land.
- The debate started by the cloning of Dolly the sheep ____________. A: has grown more fierce B: has ended C: has lost some of its strength D: is as strong today as when it started