At about 16 teenagers start to invite boys and girls to their birthday PARTY. There is a lot of DANCE and games to help find a partner.
They often make up THEIR own games so THEY that everyone finds their own partner. The trick to always to have the same numbers of BEING boys and girls! At 18 BIRTHDAYS are celebrated with family members and friends. People USUALLY have a big party.
Ответ: PARTY, DANCE, THEIR, THEY, BEING, BIRTHDAYS, USUALLY