翻译. 回答下面的题. 谢谢.!~

One day, some children were playing hide-and-seek happily. In front of the 1 , Jim found the door of the letter box was 2 and climbed in. He 3 closed the door. When he knew 4 he had locked himself in it, he began to 5 help, but nobody could 6 . He was 7 and began to cry. At that time, his sister was 8 for him. She happened to hear him. She , of course, wasn’t able to open it. When the 9 helped him out, he couldn’t keep back his tears. He had been in the box for nearly an hour. “Don’t forget to 10 a stamp on yourself next time,” said the postman. ( ) 1. A. shop B. park C. post office D. hospital ( ) 2. A. open B. closed C. big D. broken ( ) 3. A. slowly B. easily C. quickly D. hardly ( ) 4. A. that B. what C. why D. if ( ) 5. A. find out B. ask for C. think about D. look after ( ) 6. A. open B. help C. see D. hear ( ) 7. A. angry B. hungry C. afraid D. happy ( ) 8. A. asking B. looking C. waiting D. shouting( ) 9. A.policeman B.friend C.postman D.cleaner( ) 10.A.to draw B.to put C.to make.D.to buy