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. The thunderstorm lasted at -------- two hours last night.

3. I have -------- idea what to do next.

4. I feel sick, I shouldn't -------- so much.

5. They started this new project -------- February 10th last year.

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