`5.`My father hasn't smoked since 2014.

`=>`S + stopped + Ving + time ( thời gian trong quá khứ ) : Ai dừng làm gì...

`=`S + have/has not + Vpp + since/for + time

`6.`I haven't donated my blood for 7 months.

or It's 7 months since I donated my blood.

or The last time I donated my blood was 7 months ago.

`=>`S + last + V2/ed + time

`=`It's + time + since + S ( last ) + V2/ed

`=`The last time + S + V2/ed + was + time

`=`S + have/has not + Vpp + since/for + time

`7.`How long have you done charitable work ?

`=>`When + did + S + V bare ?

`=`How long + have/has + S + Vpp ?

`8.`She hasn't involved in community service for 2 months.

or It's 2 months since she involved in community service.

`=>`It's + time + since + S ( last ) + V2/ed

`=`The last time + S + V2/ed + was + time

`=`S + have/has not + Vpp + since/for + time

`-` Thì HTHT :

`+` KĐ : S + have / has + VpII

`+` PĐ : S + haven't / hasn't + VpII

`+` NV : Have / Has + S + VpII ?

`=>` `DHNB` : since , for , already , so far , yet , ....

`*` I , You , We , They `+` have

`*` He , She , It `+` has

`5`.My father hasn't smoked since `2014`

`6`.I haven't donated my blood for `7` months

`7`.How long have you done charitable work ?

`8`.She hasn't involved in community service for `2` months

`\text{# TF}`