When I opened the door, I found my father sitting in his chair, completely ______ in a magazine.
The boss commanded that the task ______ before 5 o’clock this afternoon.
Every chance should be made use of ______ English.
I don’t like ______ you speak to her.
The number of the teachers who ______ cars in our school ______ increasing very fast.
I’ve bought an English dictionary which you can ____ if you meet new words.