Please help me to fill (A)

Dear Student,
Given below is the answer to some of your questions. Kindly do the rest on your own, for the purpose of practise.

1. ​​​​​​happily - The children played happily in the park .
2. quickly - They went quickly to the post office.
3. wisely - They chose their groups wisely.
4. kindly - We must act kindly to the needy.
5. heavily - It was raining heavily in the city.
6. singly - The teacher talked to the students singly.

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Thank you.