Question

Open the brackets using correct verb form in Perfect Continuous Tenses
1. The telephone (to ring) for 5 minutes, why don’t you answer it.
2. He (to teach) German for 2 years when I begin to teach English.
3. Tomorrow it will be a month as they (to work) on this project.
4. He (to come) here day after day for years.
5. At 8 in the morning we (to drive) for 6 hours.
6. By that time she (to study) already for 3 years.

Answer 1

1. rang
2. taught
3. working
4. coming
5. drove
6. studied

Answer 2

1 has been ringing
2 has been teaching
3 have been working
4 has been coming
5 have been driving
6 has been studying