ответ: 2) My mum has been cooking for three hours.
3) The teams have been playing football for twenty minutes.
4) The headmaster has been speaking for two hours.
5) Bill has been building his house for six months.
6) I've been doing my homework for three hours.
Объяснение:
ответ: 2) My mum has been cooking for three hours.
3) The teams have been playing football for twenty minutes.
4) The headmaster has been speaking for two hours.
5) Bill has been building his house for six months.
6) I've been doing my homework for three hours.
Объяснение: