1. Boys / noisy / girls
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2. Our new teacher / serious / Mr. Carter
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3. A house / comfortable / a flat
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4. Mark’s car / fast / mine
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5. Nina’s bike / small / Celia’s
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6. My marks / high / yours
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1. Boys / noisy / girls
Boys are noisier than girls.
2. Our new teacher / serious / Mr. Carter
Our new teacher is more serious than Mr. Carter.
3. A house / comfortable / a flat
A house is more comfortable than a flat.
4. Mark’s car / fast / mine
Mark's car is faster than mine.
5. Nina’s bike / small / Celia’s
Nina's bike is smaller than Celia's.
6. My marks / high / yours
My marks is higher than yours.