Хочу понять, как сделать вот это упражнение.
Что вставить?
Mr Johnson (work) as a doctor. When he first (begin) his career in 1990, he just (leave) medical school. He (open) his own doctor's surgery in 1992 and since then he (work) as a doctor. He (enjoy) his job and, at the moment, he (teach) young medical students in his spare time. He hopes that in the future he (continue) to help sick people.