One thing I don’t like about the big city is the dirty air. The ____(traffic / pollution) is terrible.
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I keep a box of old clothes for the children to ____(dress up / figure out) in.
Don’t be so ____(pessimistic / optimistic). Everything will be fine.
It took them about one month to ____(dress up / figure out) how to use the machine.
Steve is always in a(n) ____(rush / favor). He never stays here long.