Answer
part B
1. yo canto
2. ella baila
3. tu cantas
4. nosotros cantamos
5. ellos bailan
6. usted canta
7. él canta
8. yo bailo
PART C
9. yo nado
10. ellos cantan
11. yo canto
PART D
1. mary y lisa estan cantando
2. lola esta estudiando
3. carlos y sam hablan por telefono.
Explanation:
the person who narrates in each sentence must be taken into account, either in the first person, in the second or in the third of the singular or plural. It is important to identify them because in this way we can give correct answers and we will know how to combine the verbs that are being used
