Fill in the blanks with the proper words and expressions given below ( combined ; virtually ; concerned ; guarantee ; ultimately ) 1. The bank will only lend me money if my parents __________ the loan . 2. Diets are most effective when __________ with exercise . 3. He was __________ unknown before running for office . 4. All wealth comes __________ from human labor . 5. It is well-known that all the people are __________ with children’s education .