题目内容：

根据所给中文句子，补充完整英文翻译。

1.等我爬到山顶的时候，已经是上气不接下气了。

By the time I got to the top of the hill, I was quite                          .

2.他连伙食钱都不够，更不必说娱乐了。

He hasn't enough money for food,           amusements           .

3.上星期我才察觉到我的所得是多么的低。

Only last week did I become                    how low my finances were.

4.你多长时间收到你姐姐一封信?

How often do you                      your sister?