B) to indicat a length of time, hope this helps
The correct answer is dice.
•Por qué dice él gracias?
You are going to use the word dice to fill the blank because is the correct conjugation in the sentence.
On English the sentences should be:
Why does he says thank you?
1) sabe
2) conocemos
3) sé
4)conoces
5)en
6)Sabe
Answer:
What appliance do you use every day?