• He has worked for that company for 5 years. (present perfect - ongoing action)
• I graduated from Hue University last year. (simple past - completed action)
• Tom plays football every afternoon. (simple present - habitual action)
• I was cooking in the kitchen when he came in. (past continuous - ongoing action interrupted)
• Mai is attending the meeting at the moment. (present continuous - ongoing action)
• I help him whenever he needs. (simple present - habitual action)
• She told me how to make the cake. (infinitive - purpose)
• The man standing near the door is my brother. (present participle - describing the man)
• Do you mind telling me her address? (present participle - request)
• My father decided to go abroad. (infinitive - after decided)
• Could you please tell me where to buy this book? (infinitive - asking for direction)

20. He has worked for that company for 5 years.
21. I graduated from Hue University last year.
22. Tom plays football every afternoon.
23. I was cooking in the kitchen when he came in.
24. Mai is attending the meeting at the moment.
25. I help him whenever he needs.
26. She told me how to make the cake.
27. The man standing near the door is my brother.
28. Do you mind telling me her address?
29. My father decided to go abroad.
30. Could you please tell me where to buy this book?