Small sailboats can easily turn over in the water ______ they are not managed carefully.
Tourism is the ______ for the country’s economy, so its government tries its best to ______ both the natural scenery and the places of interest.
The wedding ceremony is unique ____the minority tribe, which attracts many tourists when the time comes.
The island country is _______ its clean waters and clear skies, which are free _____ pollution of any kind.
People who ______ athletic sports are generally believed to _____ strong bodies, firm muscles but dull heads, which of course is not the case.
Journalists should base what they report____ facts, not just_____ they imagine to _____.