no ______ 难怪
100 years ______ a moment in history. (be)
Scientists have established a ______ between cholesterol levels(胆固醇含量)and heart disease. (connect)
He is the president of a large international ______. (organize)
______ between parents and children is very important. (communicate)
He is a boring man. He likes neither ______ nor reading. (entertain)