5. He (not to smoke). He (not to smoke) now. When he (to be) at the office yesterday, he (not to smoke), he (to work) hard.

He doesn't smoke. He isn't smoking now. When he was at the office yesterday, he didn't smoke, he worked hard. * **doesn't smoke:** Present Simple, привычка, общая информация. * **isn't smoking:** Present Continuous, действие не происходит сейчас. * **was:** Past Simple, состояние в прошлом (в офисе вчера). * **didn't smoke:** Past Simple, отрицание действия в прошлом. * **worked:** Past Simple, действие произошло и закончилось в прошлом.