One      of owning your own car is that you can go anywhere at any time you like.

If you build a house with good_______ , it will last long.

He did not find a job yet because he had no _____ to men who could help him.

It said the country's confirmed H7N9 cases were isolated and there has been no______ of human-to-human transmission.

At the meeting they discussed three dif-ferent_______to the study of mathematics。