问题详情：
词汇；用括号中所给单词的适当形式填空
rrow is my uncle’s (thirty) birthday.
wants to join the (swim) club.
need help at the old (people) home.
takes Lucy two hours (finish) her homework.
5. (drink) milk is good for our health.
【回答】
1. thirtieth 2. swimming 3. people’s 4. to finish 5. Drinking
知识点：构词法
题型：完成句子
