问题描述：
People often need ( 1 )in different kinds of parties.It is a good way (2)themselves and making
friends.1.A.join B.take part in C.to join D.to take part in
2.A.to relaxing B.of relaxing C.of relax D.relaxed
答案是DB,为什么
friends.1.A.join B.take part in C.to join D.to take part in
2.A.to relaxing B.of relaxing C.of relax D.relaxed
答案是DB,为什么
问题解答：
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