Mọi người giúp em với ạ

`1` My uncle has painted his house since last year

`2` They haven't visited me for 5 years

`3` Mary hasn't taken some pictures since she was on holiday last year

`4` My children haven't eaten ice cream since last summer

`5` My sister hasn't bought some clothes for 9 months

`6` He hasn't written to his parents for 6 months

`7` They haven't had a holiday since 2019

`8` Janet has played the piano since she was in grade 5

`9` These workers have worked in that factory since 2001

`10` My friends have studied English for 15 years

`-` CT :

S + last + V2/V-ed 

S + has/have + V-II

S + has/have + not + V-II

S + begin/started + V-ing

$baoyen.$

`1.` My uncle hasn't painted his house since last year.

`2.` They haven't visited me for 5 years.

`3.` Mary hasn't taken some pictures since she was on holiday last year.

`4.` My children haven't eaten ice cream since last summer.

`5.` My sister hasn't bought any clothes for 9 months.

`6.` Sai.

`7.` They haven't had a holiday abroad since 2019.

`8.` Janet has played the piano since she was in grade 5.

`9.` These workers have worked in that factory since 2001.

`10.` My friends have studied English for 15 years.

`-` S + started/began + V-ing + ... + time ago/in time/when + S + V-ed/c2

`=` S + have/has + Vpp + ... + for/since + time ( since + S + V-ed/c2 )

`-` S + last + V-ed/c2 + ... + time ago/in time/when + S + V-ed/c2

`=` S + haven't/hasn't + Vpp + ... + for/since time ( since + S + V-ed/c2 )