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  12 The examination begins at 9.0 a.m. tomorrow morning.   The presnt simple can be used with adverbs refering to future time when   the action or event is regarded as part of a fixed time table. This differs a   little in meaning from the present progressive used with such adverbs,   in that the present progressive implies an element of personal agreement,   planning, or intention on the part of the subject, whereas the presnt simple   does not.   Verbs commonly used in this way are those associated with announcements   about timetables, schedules, organized events, etc., for example, begin, end,   stop, leave, depart, arrive, come, go, open, close. There is an anologous use of   the past simple:   13 He set his alarm for seven o'clock: the examination began at 9.0      the following morning.   There are also some verbs that are not used in this way, viz., those verbs not   normally used in a progressive form - verbs referring to activities to a state   or condition (contain, resemble, equal, etc.). We do not make statements such   as:      I know the answer tomorrow.      He resembles his father in a few years' time. |