III.

1. have never watched - 2. watched - 3. has read - 4. read - 5. had - 6. have had - 7. didn't see/ saw - 8. rang - 9. met/ become - 10. hasn't drunk.

IV.

1. has seen - 2. have finished - 3. have lived - 4. has just washed - 5. have discussed - 6. has never been - 7. have known - 8. have learnt - 9. have been - 10. have stayed

`text{III}`

`1`. Have never watched

Never : Dấu hiệu thì hiện tại hoàn thành.

Cấu trúc : (+) S + Have/has + V_c3/ed + O

`2`. Watched

Last : Dấu hiệu thì quá khứ đơn.

Cấu trúc : (+) S + V_ed/c3 + O

`3`. Has read

Before : Dấu hiệu thì hiện tại hoàn thành.

`4`. Read

Last : Dấu hiệu thì quá khứ đơn.

`5`. Had

Last : Dấu hiệu thì quá khứ đơn.

`6`. Have had

Since : Dấu hiệu thì hiện tại hoàn thành.

`7`. Have seen/ saw.

Vế 1 : For : Dấu hiệu thì hiện tại hoàn thành.

Vế 2 : Ago : Dấu hiệu thì quá khứ đơn.

`8`. Has rang

`9`. Met/ became.

Last : Dấu hiệu thì quá khứ đơn.

`10`. Has drunk

Since : Dấu hiệu thì hiện tại hoàn thành.

`text{IV}`

`text{1. Has seen}`  

`text{2. Have finish}`

`text{3. Have lived}`

`text{4. Has just washed}`

`text{5. Have discussed}`

`text{6. Has never been}`

`text{7. Have know}`

`text{8. Have learnt}`

`text{9. Have been}`

`text{10. Have stayed}`

`#Study well`