use your cellphone — we are flying at ____altitude of 10,000 meters and ____average speech is 678km/h.

Only since the Industrial Revolution ________ in places away from their homes or been left to raise small children without the help of multiple adults.

It is a pity that none of the ______ stopped ______ the poor man lying there, begging.

Thanks for _____________ the new monitor.

_____ it is _____ you obtain, you should share _____ your parents your feelings.