Đáp án:
Câu 1: Jean cloth was made completely from cotton in the 18th century. (Quá khứ đơn)
Câu 2: He wishes he were a farmer now. ( Wish ở hiện tại )
Câu 3: A new clothes shop has just opened in this area. (Hiện tại hoàn thành)
Câu 4: My friend wishes she would be a film star oneday. ( Wish ở tương lai )
@cloudie

`1.` Jean cloth was made completely from cotton in the 18th century.
`\text{→QKĐ bị động: S + was/were + VPII + (by + O) + (time)}`
`2.` He wishes he were a farmer now. 

`\text{→Wish ở HT vs tobe: S + wish(es) + (that) + S + were + (O).}`
`3.` A new clothes shop has just opened in this area.
`\text{→HTHT: S + have/has + VPII + (O).}`
`4`. My friend wishes she would be a film star oneday.

`\text{→Wish ở TL: S + wish(es) + (that) + S + would/could + Vinf + (O).}`