句型转换。 1. He has never surfed, _____ _____?(改成反意疑问句) 2. They have been here since 2000 .  (对划线部分提问) _____ _____have they been here? 3. This factory opened t wenty years ago.(同义句转换) This factory _____ _____ _____ for twenty years. 4. Miss Gao left an hour ago.  (同义句转换) Miss Gao _____ _____ _____ _____ an hour ago. 5. Her mother has been a Party member for three years . (同义句) Her  mother _____ the  Party  three  years  _____. 6. The Green Family moved to France two years ago. (同义句转换) _____ two years _____ the Green family moved to France. 7. She went to school yesterday. She didn't bring her bag.(同义句) She went to school _____ her bag yesterday. 8. The girl doesn't know what he should do when she is alone at home.(同义句) The girl doesn't know wh at _____ _____ when she is alone at home. 9. It's very dark here. We have to stop the work.(同义句) It's _____ dark he re _____ we have to stop the work. 10. When I came back home, I found the windows were all opened.(同义句) When I _____ home, I found all the window _____. 11. Her grandmother has been dead for tow years.(同义句) It _____ two years since her grandmother_____. 12. Bike is short for bicycle.(同义句) Bike is another way _____ _____ bicycle. 13. The match is so important that we must go to watch it.(同义句) It's such an important match, we _____ _____it. 14. The snow was very heavy last night.(同义句) It _____ _____ last night.