填空。 Simon lives on a farm in the country. Today, he is 1 visit his cousion Anna in the city. This is Simon's 2 trip on a train. This is also his first visit to the big city. He is very 3 . Anna lives in a flat. It is at the top of a tall building 4 15 floors. It is very exciting for Simon 5 all the buildings, cars, buses from the balcony. In the afternoon Anna takes him to a youth centre 6 . There are always 7 in the underground. It's fast, clean and comfortable. After that, Anna takes Simon to a cafe for 8 . A t last, she takes Simon to a 9 , Simon wants to buy some souvenirs 10 his friends in the country. Simon has a good time with his cousin in the city. (     )1. A. on his way (     )2. A. first (     )3. A. exciting (     )4. A. in (     )5. A. see (     )6. A. by the underground (     )7. A. many people (     )8. A. drink something (     )9. A. theatre (     )10. A. to B. on his way to B. second B. interesting B. have B. seeing B. take the underground B. many shops B. eat something B. reataurant B. for C. in his way C. two C. excited C. with C. to see C. take underground C. much pollution C. something to drink C. shopping mall C. with D. in his way to D. one D. worried D. has D. sees D. by underground D. much food D. anything to drink D. school D. about