Instruction

Select the best answer to complete the sentence.

1. The survey shows that the -------- of air pollution for residents is worse than expected.

2. Most consumers judge which product is -------- quality, based on the price.

3. Crude oil and materials have risen -------- these days in addition to the increase in taxes.

4. -------- his age, he looks young.

5. The cost of living has been -------- steadily for the last six months.

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