Ответ:
Jane reads magazines twice a month.
Jane read the magazine an hour ago.
Jane had been reading the magazine for 20 minutes when her colleagues entered the office.
Jane has been reading the magazine since 5 o'clock.
Jane was reading the magazine when her mother called her.
Jane has just read the magazine.
Jane will read the magazine tomorrow.
Jane is reading the magazine at the moment.
Jane will be reading the magazine tomorrow at 6 p.m.
Jane will have already been reading the magazine for 2 hours tomorrow when the boss calls her.
Jane will have read the magazine tomorrow by 7 p.m.
Jane had read the magazine before her colleagues came.