Pigs often have twelve or thirteen babies at a b______.

Pigs often have twelve or thirteen babies at a b______.
We had no c______ but to walk home as there were no buses.
The Industrial R________ changed how people worked and lived.
Many people close their letters with Yours t_____ and a sighature(签名)
注意：是Yours不是Your

1 birth
2 choice
3 Revolution工业革命改变了人的生活
4 truly 你忠实的XXX