Add -ing to the verbs in these sentences.
1. I am...tea (dring)
2. He is ... breakfast (have)
3. I am ... a letter (write)
4. He is ... down (lie)
5. They are ... Spanish (study)
6. He is ... on his coat (put)
7. They are ... ping pong (play)
8. She is ... abroad (travel)
9. He is (die)
10. We are ... (come)
11. She is ... (sing) a new song.
12. We are ... (listen) to her