One way to understand thousands of new words is to gain ________ good knowledge of basic word formation.
You will be late for school _____ you don’t hurry.
His car _____now, so he has to go to work on foot.
---Tom, _____we go home together this afternoon ? ---Ok !
The Olympic Games makes _____ possible for people to live side by side in peace.
We’re looking forward to _____ a wonderful holiday.