13. She often (spend)______a lot of money. She (spend)_________a lot of money since i (know)________her 14. Lan never (break)________anything but her brother John (break)___________several glasses since i (know)_________. Yesterday he (break)_________my favorite glass 15. When I came in, the lesson________(teach) 16. I suggest ________camping (go) 17. This work needs________on time (finish) 18. Please remember (turn)__________off the radio before you go out 19. I can't stand (travel)___________by underground 20. He (fall)_________asleep while he was watching TV 21. We (know)_________each other since we were students 22. It's difficult for me to________(sleep) at night 23. Your car ought to__________(wash) carefully
13. She often (spend)__spends____a lot of money. She (spend)___has spent______a lot of money since i (know)_____knew___her 14. Lan never (break)______breaks__anything but her brother John (break)____has broken_______several glasses since i (know)____knew_____. Yesterday he (break)______broke___my favorite glass 15. When I came in, the lesson____was being taught____(teach) 16. I suggest _____going___camping (go) 17. This work needs____finishing____on time (finish) 18. Please remember (turn)_____to turn_____off the radio before you go out 19. I can't stand (travel)_____travelling______by underground 20. He (fall)___fell______asleep while he was watching TV 21. We (know)_____have known____each other since we were students 22. It's difficult for me to_____sleep___(sleep) at night 23. Your car ought to___be washed______(wash) carefully