1. 特殊句型1. Its (is/has been) two years since he left China.2. Its (is) the first time that I have visited Shanghai.3. have/has been to 曾经到过某地have/has gone to 去了某地4. Where there is a will, theres a way.5. It was not long before I forgot it all.6. need/want/require + to be done/doing7. do nothing but do ; have no choice but to do8. The boy has his own idea of how to finish it.9. He is easy to deal with. / You are lucky to get there on time.10.In order to/ to so as to