1. (2020七下·綦江期末) 阅读下列材料，从A、B、C、D四个选项中选出最佳答案。

    Tom is eighteen years old and he goes to work in a post office. He is very happy to get the work because he can ride his bike to post the letters. It is easy and nice. One day, he takes a letter to a house. When he gets to the door, he sees a dog in front of the door. He puts the letter on the floor and runs away. But the dog doesn't come to him. It stops and bites (咬) the letter with its mouth and carries the letter into the house. Tom says, "Oh, the dog does the same work as I do."

1. （1） Tom posts letters _________.

   A . on foot B . by bus C . on a motorbike D . by bike
3. （2） Tom thinks his work is _________.

   A . difficult B . boring C . easy and nice D . hard
5. （3） ________ takes the letter into the house.

   A . Tom B . The dog C . The man in the house D . Postman