... I saw Vera, she was cycling home., while, when, ... the teacher entered the classroom, we were talking loudly., while, when, ... the children were walking to the park, they found some money., while, when, ... the bell rang, the students were packing their bags., while, when, A loud noise woke me up ... I was sleeping., while, when, I was watching my favorite show ... the phone rang., while, when, ... my mom shouted "dinner!", I was doing my homework., while, when, Peter’s phone ran out of battery ... he was listening to music., while, when, ... Dad arrived home, Mum and I were baking a cake., while, when, ... we were shopping, we met our neighbors., while, when

Grammar-9: when or while?

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