Answer:
1. trabajando
2. leyendo
3. escribiendo
4. yendo
5. haciendo
Step-by-step explanation:
The progressive present tense in Spanish is formed with the verb estar and with the gerund of the verb that does the action.
Form:
ESTAR + Verb root + ending -ANDO (if infinitive verb finishes in “ar”)
+ ending -IENDO (if infinitive verb finishes in “er” or “ir”)