When you send a letter by air post,you must put move stamps

When you send a letter by air post,you must put move stamps 英语翻译How Stamps Came into Use?When you send a letter or a pos 英语完型填空选择When you send a letter or a poatcard,you have to put You letter must have been lost by them in the post. 的汉语是什么? before you send a letter,you usually put a s____ on the enve 英语翻译How Did Stamps Come into Use?When you spend a letter,you If you want to send a letter,you must go to the p____o_____ 1.When you want to post a letter,you can go to a p_________ You can put your letter in the ______.A.post box B.litter bi Before you post the letter,put a ____on it.填什么,我是小学生,不要太深奥 写出恰当的单词：Put a s( ) on the envelope before you send a letter. when must you type this letter.