By _____ coincidence, oil paints were developed at the time when ____technique of perspective was used.A. a ; the B \ ; a C. \; the D. a; a
The computer system ______ suddenly while he was searching for information.
In our school, many a boy ____ playing football and more girls than one ____ playing it.
-Do you want tea or coffee? - _____. I really don’t mind.
--- I want to know whether we shall go skating today or tomorrow. --- Does that make any _____?
He was such _____ good speaker that he held our attention every minute of _____ three-hour lecture.