No one has yet succeeded in explaining the ___ of how life began.

Not having a good ________ of English can be a serious disadvantage to achieving your goals.

English-born Paul made_____across the globe after he correctly forecast how Germany would fare(进展) in seven matches in the World Cup.

When he applied for(申请)a _______in the office of the local newspaper he was told to see the manager.

 It has always been the _____ of our goverment to encourage graduates to start their business.