Verb conjugation of "activar" in Spanish

So she and I went to the food store to buy some lunch. However, the store had almost no food and one could pay in local currency or in US dollars. One could really see the country's poor economy.
Joanna started kindergarten 2 weeks ago. She got used to it very quickly and I must say that I am very pround of her. She is now 23 months old and we are going to celebrate her birthday in three weeks.
The flight was a little late so we spent our time in the airport playing car race computer game. My wife won three times in a row, she is a better driver than me anyway. We flew to Puerto Madryn.