$Ziin$Bạn tham khảo ạ !!
$Exercise$ $2$:
`1.` Harder and harder
`2.` More and more confused
`3.` More and more difficult
`4.` More and more complicated
`5.` More and more
`6.` Longer and longer
`7.` Worse and worse
`8.` Closer and closer
`9.` More and more expensive
`10.` Better and better
