—what do you think of Bill? —He is a hard-working student and he always ____himself in study.
in thought, he almost ran into the car in front of him.
It was so dark in the cinema that I could hardly my friend.
--- Did you see a man in black pass by just now? --- No, sir. I a newspaper.
Have you applied Mr. Clark the position? It is worth a try.
With the loud noise going on in the workshop, I can hardly on my lessons.