9klass21 2)They have been sitting at the stadium 30 minutes 3)Look.They have been swimming in the swimming pool. 4)Kate has been learning English for six years 5)Sam is very tired.He has been working hard for 2 hours. 6)He has been driving this car for more than 10 years
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2)They have been sitting at the stadium 30 minutes
3)Look.They have been swimming in the swimming pool.
4)Kate has been learning English for six years
5)Sam is very tired.He has been working hard for 2 hours.
6)He has been driving this car for more than 10 years