Why ___ you ___ to the lectures this week? - I'm very busy.
She _____ harder and harder. The exams are coming.
My brother is at the university. He ___ to become an engineer.
Be quiet, we ___ to the speaker.
Engineering ___ rapidly nowadays.
What are you looking for? I ___ to find my notepad.
At present digital technologies ___ more and more popular.
Please keep silent. Everybody ___ a test.
Nitroglycerin ____ an explosive liquid.
Carol ... her friends in Glasgow now.