Have you seen Linda? I (a)   (look) for her for almost an hour.

I (a)   (think) about buying a new car.

Chris is usually a sensible person, but today he (a)   (be) rather foolish.

The famous opera singer (a)   (appear) at the opera house tonight.

What time (a)   (the play / start) tonight?

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

(a)  

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

(a)  

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

(a)  

Christopher ... (just/design) a fantastic new website for me and it looks great!

(a)