Instruction

Select the best answer to complete the sentence.

1. The high school boy worked so hard to earn -------- for school tuition.

2. I bumped -------- my old classmate on the street.

3. Before Morris construction company hires people, they conduct a series of -------- with the candidate.

4. When you are tired, you are -------- to make careless mistakes.

5. Customer reviews indicate that many modern mobile devices are often unnecessarily ------- .

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