21. We began eating when it started to rain. (eat –ate –eaten)  We have __________________________ 22. I last had my hair cut when I left her.  I haven’t __________________________ 23. The last time she kissed me was 5 months ago.  She hasn’t____________________________________________________ 24. It is a long time since we last met. (meet – met –met)  We haven’t____________________________________________________ 25. When did you have it ?  How long_____________________________________________________ 26. This is the first time I had such a delicious meal .  I haven’t_____________________________________________________ 27. I haven’t seen him for 8 days. (see –saw –seen)  The last time __________________________ 28. I haven’t taken a bath since Monday. (take –took –taken)  It is on Monday __________________________ 29. It's 2 years since I last had a punture.  I haven’t __________________________ 30. It's 2 months since he last earned any money.  He hasn’t _____________________________________________________ Bài tập viết lại câu thì hiện tại hoàn thành và quá khứ đơn