$\text{@Ochi}$

`7`, We have worked in this factory since we were young.

→ Thì HTHT: S + have/has + P2 + (O) + for time / since S + V-ed

`8`, The car model was made by Nam yester day

→ Bị động thì QKĐ

`9`, She enjoys collecting stamps.

→ Sb hobby is V-ing = S + like/enjoy/... + V-ing

`10`, He was tired so he went to bed early.

→ Because clause 1, clause 2 = Clause 1 + so + clause 2

`11`, I think ice-skating is difficult.

→ find sth adj = think sth tobe adj

`12`, You should lose your weight

→ làm theo hiểu biết

`13`, How long did you took part in the communty service?

→ hỏi chỉ khi nào.

$\text{#BTS}$

`7`. We have worked in this factory since we were young.

`->` S + started/began + Ving + (when) + thời gian = S + have/has + PII + since/for + thời gian

`8`. The car model was made by Nam yesterday.

`->` Câu bị động quá khứ đơn: S + was/were + PII + (by+O).

`9`. She enjoys collecting stamps.

`->` Enjoy + Ving

`10`. He was tired, so he went to bed early.

`->` So: vì vậy

`11`. I think ice-skating is difficult.

`12`. I think you should eat less junk food.

`13`. How long have you taken part in the communty service ?

`#BTS`