Many transportation vehicles, such ______ cars and trucks are in fact making our environment dirtier.
Many transportation vehicles, such ______ cars and trucks are in fact making our environment dirtier.
Our room is ______ than your room. A: dirty B: more dirty C: dirtier D: the dirtiest
Our room is ______ than your room. A: dirty B: more dirty C: dirtier D: the dirtiest
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