Read the information about London Transport Agents. Choose the best word to fill each gap.

     Jennifer Porter is the managing __________ of Healthcare, a publication of the American Pharmaceutical Association __________ her private office in her Virginia home, she assigns __________ to ten articles for each issue of the magazine. The writers send her their stories on a computer disk, usually __________ means of an overnight delivery service. Porter checks them and then sends them __________ the designer's office in New York.

     Porter's biggest problem __________ electronic publishing is training her writers. One sent the story on a wrong-sized disk; __________ used a disk that my computer couldn't read; a third used software couldn't decipher(破译).

     The disk problems should improve on the next issue __________ Porter has recently invested in a modem __________ writers can send their stories directly to her computer.

     Porter says she is a skeptical technical consumer. I like a computer the same way I __________ a pencil. They are both tools that must work. __________ something goes wrong with my electronic equipment out here in the middle of Virginia, I have to put it in the __________ and take it someplace.