Isn't it time you got down to ________ the papers?
They all looked ____ at the master and felt quite _____.
Food prices are climbing around the world because farmers can't ____ demand for grain.
——Shall we go skating or stay at home? —— Which _____ do yourself?
--- Oh, my God! We just missed the last bus back home. --- I’m sure we it, but you were not in any hurry.
The topic, we devoted a full discussion, is to be presented to our teacher at class.