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

Answer 2

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