giúp tớ với nhé cảm ơn 

Bài `1)`

`1)`

`( + )` Tom has seen this film before

`( - )` Tom hasn't seen this film before

`( ? )` Has Tom seen this film before `?`

`2)`

`( + )` I have finished my exercise already

`( - )` I haven't finished my exercise already

`( ? )` Have you finished my exercise already `?`

`3)`

`( + )` They have lived here since `1990`

`( - )` They haven't lived here since `1990`

`( ? )` Have they lived here since `1990` `?`

`4)`

`( + )` My father has just washed his car

`( - )` My father hasn't just washed his car

`( ? )` Has your father just washed his car `?`

`5)`

`( + )` The students have discussed the question rencently

`( - )` The students haven't discussed the question rencently

`( ? )` Have the students discussed the question rencently `?`

`6)`

`( + )` Mary has never been to Ha Noi

`( - )` Mary hasn't never been to Ha Noi

`( ? )` Has Mary never been to Ha Noi `?`

`7)`

`( + )` We have known each other for `5` years

`( - )` We haven't known each other for `5` years

`( ? )` Have they known each other for `5` years `?`

`8)`

`( + )` So far we have learnt five lessons

`( - )` So far we haven't learnt five lessons

`( ? )` So far have they learnt five lessons  `?`

`9)`

`( + )` We have been pen pals for a long time

`( - )` We haven't been pen pals for a long time

`( ? )` Have they been pen pals for a long time `?`

`10)`

`( + )` They have stayed here since last week 

`( - )` They haven't stayed here since last week 

`( ? )` Have they stayed here since last week  `?`

Bài `2)`

`1)` have seen

`2)` has lent

`3)` has just passed

`4)` has studied

`5)` has already told

`6)` hasn't taken

`7)` has read

`8)` haven't begun

`9)` have been

`10)` has worn

`-` Notes:

`-` HTHT: diễn tả một hành động, sự việc bắt đầu trong quá khứ và kéo dài đến hiện tại hoặc một sự việc trong quá khứ có kết quả ảnh hưởng đến hiện tại. 

`-` Cấu trúc:

`( + )` S + have/has + Ved/ Cột `3` + O

`( - )` S +have/has not + Ved/ Cột `3` + O

`( ? )` Have/has + S + Ved/ Cột `3` + O

I, you, we, they hoặc N ( số nhiều) `to` have (not)

He, she, it hoặc N (số ít) `to` has (not)

`-` DHNB: 

`+` For + thoảng thời gian

`+` Since: mốc thời gian

`+` Before, just, yet, never, ever, already, ...

`#Ph`