Révision des temps en anglais : All tenses review

Complete the following sentences by conjugating the verb in parentheses. Choose between Present Simple, Present Continuous, Past Simple, or Present Perfect: 1. Every day, Thomas (walk) to the park. 2. Be quiet! The baby (sleep) right now. 3. I (lose) my keys yesterday while I was running. 4. We (know) each other since we were $5$ years old.