Перевести 2.я искал свою ручку, когда вошла сестра 3.он стал известным, когда спел эту песню 4.майк разговаривал по телефону когда услышал странный шум 5.я брал урок пения, когда позвонил мой друг. не через !

2. I was looking for my pen when my sister came in.
3. He became famous when he sang this song.
4. Mike was talking on the phone when he heard a strange noise.
5. I was taking a Music lesson when my friend called.

2. I was looking for my pen, when my sister came in.
3. He became famous, when he sang this song.
4. Mike was talking by phone, when he heard a strange noise.
5. I was taking an singing lesson, when my friend phoned.