Exercise 24

1) She has been studying for 4 hours.

2) She has been running for an hour.

3) She has been putting on her make-up since 8.15.

4) He has been driving since 7.00.

6) They have been farming for 7 years.

7) He has been learning French for 5 years.

8) They have been saving money for 3 months.

9) He has been playing tennis for 14 years.

10) It has been staying for 15 minutes at the railway station.