Hung's brother doesn't drive as carefully as he does. (carefully)

→ Hung drives more carefully than his brother.

The laboratory in my school is now better equipped than some years ago. (badly)

→ The laboratory is not as badly equipped as it was some years ago.

Nam works more lazily, so he often gets worse marks than Quang. (hard)

→ Quang works harder than Nam, so he gets better marks.

Trung drives more carefully than Minh, so he has rarely had an accident. (carelessly)

→ Minh drives more carelessly than Trung, so he has had more accidents.

Going by taxi is faster than going by bus, but it costs more than a bus. (slow)

→ Going by bus is slower than going by taxi, but it costs less.

Phong was a quicker walker than his friends. (quickly)

→ Phong walked more quickly than his friends.

Today we play worse than we did yesterday. (well)

→ Today we play not as well as we did yesterday.

Maria and her sister talked louder than the other guests. (quietly)

→ The other guests talked more quietly than Maria and her sister.