When you have a post-office box, the postman does not__1__ letters to you，but you go to the post-office and get your letters and parcels from your box．The box is __2___，and you have the key，so __3___ letters are very safe. One day，the headmaster of a school __4__ the post-office and _5__ a post office box for his school. He soon__6__an answer. It said, “we’ll give you a post-box __7_ one month.”
Three months later, the headmaster wrote to the post-office again and said, “why haven’t we got a post-office box __8__?”
This was the answer from the post-office:
“Dear Sir, 
We __9_ you a post-office box two months ago and wrote to you then to tell you. Here is the key __10__ your box. You will find our letter to you in it.”
1．A．take B．fetch C．bring D．carry
2．A．open B. locked C．empty D．free
3．A．the box B．the C.they D. it 
4．A．writes to B. is writing C. wrote to D. was writing
5. A. asked for B. offered C. asked to D. offered to
6．A. gets B. has got C. got D. is getting
7. A．for B. with C. passing D. in
8. A. yet B. already C. either D. also
9. A. give B. have given C. gave D. had given
10.A. of B. to C. with D. in