两阶段封锁协议下，将多个事务根据它们的封锁点进行排序，这个顺序就是事务的一个 ___

请先阅读下面短文，掌握其大意，然后从方框中所给的单词中选出最恰当的10个， 用其适当形式填空，并将答案填到相应位置。

sun, surprise, take, lie, many, play, swim, lot, be, rainy, study, have

Dear Frank,
I'm  1 at a middle school now. My school is nice and clean. There  2 thirty students in my class.
It's  3 today and it's hot. My classmates and I are playing on the beach. It's a nice place. The water is blue and clear. We are  4 a good time! There are  5 of birds flying over the sea. Many people are  6 in the sea. Some boys are  7 beach ball. Other people are  8 on the beach. One girl is  9 photos, I'm  10  that everyone can enjoy themselves in this heat.
Could you tell me something about your life?