1. improved → has improved
- Thì HTHT : S + have/has + Vpp
- Dấu hiệu : since
2. since → for
- For + khoảng thời gian
3. I → I am
- Thì HTĐ dạng tobe : S + am/are/is + N/ Adj
4. neighbor → neighborhood
- neighborhood : hàng xóm
- Whole + N
5. two → twice
- Cụm từ twice time