Over 20% of the students at that school _____ the habit of smoking, which is beyond imagination.
—Tom, you should avoid____ late for class. —I’ m sorry. I won’ t be late again.
To have a good performance in the coming speech contest, first of all, you should know your ______.
-- What is the price of petrol these days? --- Oh, it ______ sharply since last month.
I was about to leave the office ______ an unexpected visitor came.
--- It took me two hours or so to walk here. --- But you ______ here in Billy’s car.