Fill in the blank with "Adj" or "Adv"

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1. I can do this exercise __________ (easy).
2. Helen works very __________ (hard) in her new job.
3. They look __________ (serious) students.
4. I agree with you __________ (complete) about that matter.
5. This apple is very __________ (soft).
6. They both study English very __________ (good).
7. Helen is a __________ (beautiful) girl.
8. Her sister plays the piano __________ (beautiful).
9. He does his work __________ (good).
10. Tom is a __________ (lazy) pupil.