题目内容：

根据句意及首字母提示补全单词。(5分)

1.The b_____________makes the workers work for 12 hours a day.

2.He can’t go to America because he lost his p___________

3.Your father is your mother’s______________

4.Your t____________is to find out the cost by train.

5.Shanghai is in the e___________of China.