`5` My brother's taste in music and arts is different from mine.

`-` S1 + be + different from + S2: khác với

`6` Rock music is not as popular all over the world as pop music.

`-` So sánh bằng phủ định: S1 + be + not as + adj + as + S2

`7` How much does a kilo of this watermelon cost?

`-` Hỏi giá: How much + do/does + N + cost?

`8` Our school has three computer rooms.

`-` S + have/has + N: có

`9` This year's music contest is not like last year's.

`-` S1 + be + (not) + like + S2: (không) giống với 

5 My brothers taste in music and arts is different from mine.

`-` S1 + be + diffrent from + S2 : Thứ gì khác thứ gì.

6 Rock music is not as popular as pop music in all over the world.

`-` So sánh bằng : S1 + be + as + adj + as + S2.

7 How much does a kilo of this watermelon cost?

`-` Hỏi về giá cả một thứ: How much + trợ động từ + S + cost?

8 Our school has three computer rooms.

`-` Hiện tại đơn: S + V(hiện tại) + O.

9 This years music contest is not the same as last year.

`-` S1 + be + the same as + S2 : Thứ gì giống thứ gì.