1. The mailman delivered the letters promptly.
    那个邮差准时地投递信件。

2. The tone of his letters has sharpened recently.
    他最近来信的口气变得刻薄起来.

3. There were books, clothing and photographs, together with letters which the seaman had once received from his wife.
    其中有书箱、衣服、照片以及水手收到的妻子的来信。

4. Then she had an idea. She stamped out the letters ´SOS´ in the snow.
    后来她有了一个主意。她在雪地上踩出了"SOS"这3个字母。

5. The movements represented the letters of the alphabet.
    不同的动作代表不同的字母。

6. They took his letters and saw that they were sent to his friends in Europe.
    他们负责把他的信寄给他在欧洲的朋友。

7. He said,´ Pauline is typing letters. She can´t speak to you now!´
    他说："波淋正在打信，她现在不能同你讲话！"

8. He returned to the blackboard, took a piece of chalk, and wrote in large letters, "VIVE LA FRANCE."
    他回到黑板前，拿起一根粉笔，写下几个大字：“法兰西万岁！”

9. A letter / letters
    一封信 信（复数）

10. Always proofread completed letters very carefully. Consult dictionary when necessary or in doubt.
    完成的书信一定要很小心地校对，有必要或怀疑时查典。