Определите видовременную форму глагола (Past Simple, Past Continuous, Past Perfect) и выполните перевод. 1. As we know, transistors replaced electronic tubes due to their numerous advantages. 2. She had never worked with database until I taught her. 3. The computer was loading when I came in. 4. They were performing all instructions yesterday morning. 5. Sorry, but I deleted your files two days ago.