Looking for answers to some simple English questions

1. He decided to giv up studying paino

2. Copying the text

3. It's still worth buying worth buying

4. is busy picking cotton

5. he went on to write his letter.

6. prohibited Mustn't stop cars here

7. If you isist on speaking English

8. refused to jump over the stone wall

9. They had to put off having the sports meeting.

10. prevent the boy climbing the tree