Mn giúp e vs ak e đang cần gâpd huhu;-;

Part `1`:

`1`. I have known Tommy for a long time since we were kids.

`→` S + have/has + V_pII + for + time + since + V_ed/c2

`2`. He plays the piano at school but he doesn't like it.

`→` S + V + but + S + V:...nhưng...

`3`. He has played the piano since he was small.

`→` S + have/has + V_pII + since + S + V_ed/c2

`4`. Getting enough sleep helps students do their best in the classroom.

`→` S + help + O + V_inf

`5`. Phong eats lots of junk food so he keeps putting weight.

`→` S + V + so + S + V: ...vậy nên...

Part `2`:

`1`. It has not rained for a fortnight.

`→` S + have/has + not + V_pII + for + time 

`2`. Lucy has not worn that dress since Barbara's wedding.

`→` S + have/has + not + V_pII + since + time