He spent five years in Paris, with occasional visits to Italy. (occasion)
- Điền adj để bổ nghĩa cho N là "visits".
- occasional (adj): thỉnh thoảng
14. Two million people in the country live in poverty (poor)
- poverty (n): sự nghèo đói.
20. I don’t know why he’s always unfriendly to me. (friend)
- friendly (adj): thân thiện >< unfiendly (adj): không thân thiện.