`I.`

`1.` Now I don't go climbing as much as I went when I was younger.

`->` So sánh ngang bằng `-` adv:
S + V + as + adv + as + S

`2.` I suggest walking to school.

`->` suggest doing sth: đề nghị làm gì

`3.` We haven't decorated the room for two years.

`->` It is + time + since + S + Ved/V2

`=` S + have/has not + P2 + for + time

`4.` He asked Mai how she would travel to Hai Phong the next day.

`->` Câu tường thuật `-` wh question:
S + asked sb + wh question + S + V (lùi thì)

`-` Lùi thì: will `->` would

`-` ĐTCTG: tomorrow `->` the next day

1. Now, I don't go climbing as much as I did.

S + don't + V1: thì HTĐ

used to + V1: đã từng 

S + V + as + ADV + as+  O: ss bằng 

2. I suggest walking to school.

suggest  +Ving: đề nghị 

3. We haven't decorated the room for two years.

It's / has been + time +  since +S + (last) + V2/ed 

= S + has/have + not + V3/ed + for/since + time

4. He asked Mai how she would travel to Hai Phong the next day.

S + asked + O +Wh + S+ V (lùi thì) - tường thuật - dạng WH-question

will ⇒ would 

tomorrow ⇒ the next day / the following day 

`color{orange}{~MiaMB~}`