extremely hot this summer __________,many people say it has been the hottest in the past 30 years

Are you worried about her safety? — Just ________ She isn’t alone

New _____ continue to use ancient methods of agriculture to maintain the terraces.

Simon was _____ why many of his friends didn’t turn up at his birthday party.

Ma Yun has had much success ______ his business and donated much of his moneythe charities.