Question

1. Tony has been learning/has learned Spanish for 2 years.
2. The ducks have already flown/have been flying to the South.
3. My parents have known /have been knowing him for ages.
4. Sara has forgotten/has been forgetting to phone her best friend.
5. The children have been watching/have watched already TV-programm for kids​

Answer 1

has been learninghave already flownhave knownhas forgottenhave watched

Answer 2

1)has been learning

2)have already flown

3)have been knowing

4)has forgotten

Объяснение:5)have already watched