Present perfect continuous (affirmative)

I ________________ for you for two hours.

• has been waiting

• have been waiting

• have been waited

Ana ______________ at the university since August.

• has been teaching

• have been teaching

• had been teaching

We _____________ our vacation for over a month.

• has been planning

• have been planing

• have been planning

Marco ____________ French for very long.

• have been studying

• has been studying

• had been studying

Ricardo and Joel _____________ basketball.

• has been practising

• have been practised

• have been practising

You ____________ the wheels on my car.

• had been replacing

• has been replacing

• have been replacing

Andrea _____________ her mistakes more easily lately.

• has been admitting

• have been admitting

• has been admiting

I _____________ television for an hour.

• had been watching

• has been watching

• have been watching

The criminal _____________ to the police all long.

• have been tying

• has been tying

• has been tieing

We______________ about the schedule for weeks.

• have been asking

• has been asking

• had been asking