Perfect aspect

I came to England six months ago. I started my economics course three months ago. When I return to Australia, I _______ (study) for nine months and I _______ (be) in England for exactly one year.

When Sarah goes on vacation next month, she _______ (study) German for over two years. She should be able to communicate fairly well while she is in Austria.

I’m sorry I _______ (not come) to class lately. I _______ (work) late in the evenings for the past fortnight.

Frank just changed jobs again. If he keeps this up, he _______ (change) jobs at least four or five times by the end of the year.

I wondered if Mary _______ (reach) home yet? She _______ (leave) too late to catch the bus.

By the time we get to Chicago this evening, we _______ (drive) more than four hundred miles. We are going to be exhausted.

By this time next year, the government _______ (resign).

According to the latest forecast, the tunnel _______ (finish) next year.

You look dirty. What _______ (you/do) all day?

Peter was Sally's best friend. She _______ (know) him all her life.

I was delighted when I found my keys. I _______ (look) for them for hours.

I have not traveled much yet; however, I _______ (visit) the Grand Canyon and San Francisco by the time I leave the United States.

Here’s the news. The Home Office _______ (announce) that the two prisoners who _______ (escape) from Dartmoor prison earlier this morning _______ (give themselves up) to local police.

She _______ (study) French words for hours, but she still doesn't remember all of them.

She was exhausted because she _______ (work) since eight o'clock that morning.

I _______ (have) the same car for more than ten years. I'm thinking about buying a new one.

So far we _______ (not notice) anything unusual, but we _______ (not pay) very close attention.

We were very hungry because we _______ (not / eat).

Drive faster! If you don't hurry up, she _______ (have) the baby by the time we get to the hospital.

I _______ (see) Judy for more than five years and during that time I _______ (see) many changes in her personality.

The passengers were cross because the airline _______ (lose) everyone's bags.

The children were wet because they _______ (play) football in the rain.

Matt and Sarah _______ (have) some difficulties in their relationship lately, so they _______ (go) to a marriage counselor. I hope they work everything out.

Lately, I _______ (think) about changing my career because I _______ (become) dissatisfied with the conditions at my company.