27. We have cooked the meal since he came -> we started………………
28.She has never seen Mount Everest before -> This is the…….
29.They have not gone to France before -> This is the…..
30.Mary has worked in this school for a few months -> mary started………
31.This is the first time Mrs Lien visited Canada -> Mrs Lien hasn’t ………………
32. We ( studied )……a very hard lesson the day before yesterday……..
33.We (have studied)…….almost every lesson in this book so far……
34.We (watched)……an interesting program on TV last night……
27. We started cooking the meal when he came.
28. This is the 1st time she has ever seen Mount Everest.
29. This is the 1st time they have ever gone to France.
30. Mary started working in this school a few months ago.
31. Mrs Lien hasn’t visited Canada before.
32. studied ( quá khứ vì có trạng từ yesterday: hôm qua)
33. have studied ( HT hoàn thành vì có trạng từ so far: cho đến nay)
34. watched ( quá khứ vì có trạng từ last night: đêm qua)
*Công thức :
1. S+have/has+V3/ed+…..
= S+ started/begin+Ving/toV+…
2. S+have/has+not/never+V3ed…..+before
= This is the 1st time+S+have/has+(ever)+V3ed+….
$\text{STUDY WELL!}$
27. We started cooking the meal when he came.
28. This is the 1st time she has ever seen Mount Everest.
29. This is the 1st time they have ever gone to France.
30. Mary started working in this school a few months ago.
31. Mrs Lien hasn’t visited Canada before.
32. studied.
33. have studied.
34. watched.