`IV.`

`1.` more dangerous

`-` than `->` So sánh hơn

`-` Form: Am/Is/Are +S + more + adj + than +N/pronoun?

`2.` more wonderful

`-` than `->` So sánh hơn 

`-` Form: S + be + more+ adj + than + N/pronoun

`3.` noisier

`-` than `->` So sánh hơn

`-` Form: S + be + adj-er + than + N/pronoun.

`4.` the best

`-` Form: S + be + the + adj-est + N/pronoun

`5.` the highest

`-` Form: S + be + the + adj-est + N/pronoun

`V.`

`1.` B. noise `->` noisy

`-` adj and adj `->` Cần chuyển noise sang dạng tính từ (busy and noisy)

`-` noisy (adj): ồn ào

`2.` A. makes `->` make

`-` Form: S + must + V-inf + ... `->` make ko chia

`3.` B. most `->` more

`-` than `->` So sánh hơn

`-` Form: S + be + more+ adj + than + N/pronoun

`4.` A. must `->` mustn't

`-` "No walking" `->` mustn't walk on grass

`-` Form: S + mustn't + V-inf + ....

`5.` A. travelled `->` will travel

`-` next week là DHNB của thì TLD

`-` Form: S + will + V-inf + ...