Giúp e với ạ . Cảm ơn nhiều

1. She has played the guitar for 5 years.
2. She hasn't gone to visit me for 4 months.
3. They haven't checked the computer system since 2005.
4. Helen has worked as an assistant since she was 18.
5. She last ate this food when she was 10.   
6. She hasn't come here for years.
7. She has never seen this film before.
8. The last time Peter attended the lecture was a week ago.
9. No sooner did she arrive home than she received a phone call.
10. Hardly had she got up when her mum went to work.
11. This is the first time I met this man.
12. We have never taken such a challenging task before.
13. After Alan had cooked dinner, she cleaned the kitchen. 
14. No sooner had he entered the house than it started to rain.
Hardly had he entered the house when it started to rain. 
15. No sooner did he arrived at the meeting than the chairman began his speech.
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QKĐ: S + V2/ed + O
HTHT: S + have/has + V3/ed + O
No sooner + did + S + V + than + S + V2/ed
No sooner + had + S + V3/ed + than + S + V2/ed
= Hardly + had + S + V3/ed + when + S + V2/ed