But the unpleasant feeling of coldness disappeared at the _______ of his students pouring out of their classroom to give him a warm, wordless welcome.
_______, ice can be changed into water and water can be changed into steam.
--- How do you want to post it? --- It is only printed matter;_______ mail is OK.
---Do you know what a computer system ________ ? ---Hardware and software. Am I right?
Michael’s new house is like a huge palace, _______ with his old one.
_____ of the city ____ destroyed in the war that broke out in 1945.