Поделитесь своими знаниями, ответьте на вопрос:
Поставьте глагол во времени указанном в скобках 1.the girl (to learn)english (present indefinites 2.the teacher (to explain) a grammar rule nowpresent continuous) 3.mary(to switch on)the light (present perfect)
The teacher is explaining a grammar rule now.
Mary has switched on the light.