tolong bantu jawaban nya Plissssss

1.
Adrian: Are you already take your new subjects for this semester?
Keith: Yeah, I have taken it. I took it yesterday.

2.
I never drank an alcohol since 2009.
Today, we're gonna be separated for so long.

3.
Aku meninggalkan rumah lamaku tahun lalu.
Mr. Hebert telah mengenalku selama bertahun-tahun.

4.
The rain won't stop.
I have started working on this office since 2010.

5. When we want to talk about unfinished and finished action, states or habits that started in the past and continue to the present.