Answer:
I think it is necessary.
Explanation:
Without the "a" it's like you're asking a question, when you add the "personal a" you're saying it as in you did that!
1.A
2.B
3.B
4.A
I’m not sure on 3
1) Ellos estan juegando con la pelota
2) los estudiantes de durmen en la clase
3)los Chicos van al almurzo
4) las muchachas prefiren jugar afuera
5) el muchacho eats pensando
Tried my best =)
Answer : escribiré.
Yo le escribiré means ‘I will write’
