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Japanese people often ask people what blood group they are. This is b ______ they believe that a person’s blood group says a lot about their character and personality. The Japanese also believe that k______ blood group can help them decide that if a person will be a person’s good friend. It is strange that this idea is so popular in Japan because it is not a traditional idea, but a m______ one. Blood groups were only d______ in 1901 and in 1916 a Japanese doctor suggested that blood groups were related to temperament (气质、性情).
In 1927, a writer did a large study of people and wrote a guide to blood groups. He said that people f______ blood group O are calm, patient and in control of their emotions (情绪). They are f______ of self-confidence but are also quiet. People from blood group A are gentle and careful, worry a lot, find it hard to make a d______, and do not like arguments. People from blood group B are cheerful and “independent”(独立). They like to talk and do things w______ needing help from others. Blood group AB is quite a strange group. These people may seem like people from blood group B but they are actually m______like people from blood group A. They are shy and confident, trustworthy (可信赖的)and like to help others. The Japanese also think that your blood group a______ your choice of job and even your choice of marriage partner!