Put the verbs in brackets into the present perfect continuous.
He … (watch) a film for an hour.
He has been watching a film for an hour.
1 I … (call) you all morning.
2 They … (work) in the basement since 10 am.
3 Peter … (study) for his driving test for 2 hours.
4 We … (paint) the living room all day.
5 She … (wait) for the bus for 15 minutes.
6 The secretary … (type) letters since morning.
