Hot _______the night air was, we slept deeply because we were so tired after the long journey.
A new ______ to teaching languages is being used here, and it has turned out to be very helpful to the students.
The Olympic mascots are the Olympic flame, the panda, the Tibetan antelope and the swallow, _______ a close group of friends.
I saw Tom ______ into the classroom without ______.
Of the two coats, I’d choose the red one, for I am ______ fond of it.
Victor apologized for ______to inform me of the change in the plan. (2004上海春)