Those people_____a general understanding of the present situation.

William has cut his smoking_____to five cigarettes a day.

The girl who found the ring received a generous_____of five pounds.

He drove fast and arrived an hour_____of schedule.

He was very_____to go，but he had no choice.

I can speak_____German.

There isn ‘t much milk_____is left in the bottle.

His article is better than_____in the class.

My wallet is nowhere to be found.I_____it when I was on the bus.

Copernicus maintained that the earth_____round the sun.