9.2 Have you been waiting long?
What have you been doing?
How long have you been working there?
How long have you been selling mobile phones?
9.3 've been waiting
've been learning Spanish
She's been working
They have been spending their holidays in Italy
9.4 I am looking
Are you looking
She has been teaching
I have been thinking
He is working
She has been working
1)How many
2)How long
3)How old
4)How much
5)How fast
6)How tall
7)
8)How long
Jack London, American writer, socialist, social activist, best known as the author of adventure stories and novels. Jack London was second after Hans Christian Andersen on izdavaemosti in the USSR