用单词的适当形式补全句子。
1. There are thirty-two ______________ (girl) in my class.
2. My father is ______________ (read) a book now.
3. ______________ (this) are my good friends.
4. Li Ming ______________ (arrive) in Kunming at 3 o'clock in the afternoon.
5. How many ______________ (people) are there in your family?
