Fill in and put the correct form of lose touch, track down, catch up and Past Perfect. 1. She had spent years trying to her parents 2. Singapore is trying so hard to when it comes to technological advancements 3. Michelle was my best friend at the university. But over the years we've 4. After Sofie (finish) her work, she with Japan went to lunch 5. She (never see) a bear before she moved to Alaska