`I.`

`1.` has just bought 

`2.` has been 

`3.` has been

`4.` have never seen

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Thì hiện tại hoàn thành: S+ have/ has+ V-ed/3

Dấu hiệu nhận biết: for+ khoảng thời gian, since+ mốc thời gian, already, yet, now that, till now, recently, lately, never, ever ...

`II.`

`1.` A new bridge is going to be built in the area ( Bị động của thì tương lai gần: S+ am/is/are going to+be+ P.P )

`2.` A new school will be built in my village ( Bị động của thì tương lai đơn: S+ will be+ P.P )

`3.` Jeans are sold all over the world ( Bị động của thì hiện tại đơn: S+ am/is/are+ P.P )

1 has just bought
2 has been
3 have never seen
II.
1 is going to be built in the area
2 will be built in my village
3 are sold all over the world