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

After three years’ study, Jane got a ________ for teaching English.

The most important _____ of his speech at the G20 summit was that we should all unite to fight against the financial．

The drilling in Antarctica dragged on slowly because of lack of money, equipment breakdowns, environmental ______ and severe cold.

–What took you so long? –I got lost. I have no sense of direction.