Present Tenses

Andrew and I ... (be) best friends since we were in college.

We ... (not/know) when our cousins' flight arrives this afternoon.

I'm absolutely exhausted! I ... (revise) for my final exams all evening.

Students at university often ... (share) a room in the halls of residence.

We ... (walk) for an hour and I still can't see our car! Where is it?

... (you/remember) where the advertising company is?

At the moment, I ... (work) at a campsite to earn some extra money for my summer holidays.

Unfortunately, my colleagues and I ... (not take) time off work since last summer.

Getting into a good university ... (become) more and more difficult each year!

How long ... (you/surf) on the Net? It's eleven o'clock and it's time for bed.