1. True
2. False. No hay que llegar tarde a clase.
3. False. No tengo que usar una calculadora en todas mis frases.
4. True
Of course its gonna be B.
¿Te gustan los dulces?
It says Do you like the sweets?
Hope this helps
If your talking about the present tense of the verb "estar" then it would be estamos, becuase your using the nosotros form of the verb.
I hope this helps you!
