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
A special dinner there might include Chinese pork dish, British roast beef and French-style vegetables and boiled rice ______ them.
_____ the help of experienced career instructors, this type of job-hunting training ____ to be very efficient.
Music should be taught routinely in schools because of the benefits ______ can have on the development of the brains of young children.
—You didn’t go to Europe, why? —I _____ this morning, but I _____ to Shanghai because of an emergency .
The lady has an abnormal state of mind. Whatever happens, she always assumes ______.