We set World Reading Day ________ teens to form a good reading habit.

How long was it ______ you finally reached your goal of becoming a doctor—- Five years.

Whether the soup smells _____ or not doesn’t make any difference to me, as I can’t smell _____ due to my bad cold.

I’d like to buy a house-modern,comfortable,and _____in a quiet neighborhood[ ]

It is reported that the United States uses _____ energy as the whole of Europe.