Researchers were surprised to learn that friendships increased life (3) to a far greater extent than frequent contact with children and other relatives. A. expectation B. insurance C. e

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Researchers were surprised to learn that friendships increased life (3) ______ to a far greater extent than frequent contact with children and other relatives.

expectation

insurance

expectancy

assurance

Giải thích

Đáp án C

Kiến thức: cụm từ cố định
A. expectation(n): sự mong đợi
B. insurance(n): bảo hiểm
C. expectancy (n): triển vọng
D. assurance(n): sự bảo đảm
Cụm từ: life expectancy: tuổi thọ