Как правильно расскрыть скобки? Mark (not talk) on the phone when his boss (enter) the room. He (tidy) up his desk
Зависит от времен , которыми можно оперировать ) Mark isn't talking on the phone when his boss enters the room . He's tidying up his desk .
Past simple and Past Continuous
Mark wasn't talking on his phone when his boss entered the room . He was tidying up his desk . значит так )