1、用since和for填空 1. ______ two years 2._______ two years ago 3. _______ last month 4.______ 1999 5._______ yesterday 6. _______ 4 o’clock 7. ______ 4 hours 8._______ an hour ago 9. _______ we were children 10.______ she left here 11) We have learned five lessons （
2、） the beginning of this term. 12) Mrs Liao has been in hospital （ ）last week. 13) I have stayed at my aunt’s （ ）two weeks. 14). He has lived in Nanjing ________ the year before last. 15). I’ve known him __________ we were children. 16). Our teacher has studied Japanese
3、_________ three years.17). She has been away from the city ___________ about ten years. 18). It’s about ten years __________ she left the city.
