1. At one time the amount of postage to be paid depended on the _____. 
　　　A) size of the letter
　　　B) weight of the letter
　　　C) distance that the letter traveled
　　　D) date when the letter was posted

　　2. Nowadays, if you post a letter going five hundred miles, _____. 
　　　A) you pay the same as you do for one going five miles
　　　B) you pay more than you do for one going five miles
　　　C) you pay less than you do for one going five miles
　　　D) you don’t have to pay since it is free of charge

　　3. The most expensive letter to send by post is _____. 
　　　A) a light letter by sea
　　　B) a heavy letter by sea
　　　C) a light letter by air
　　　D) a heavy letter by air