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
Listening to music at home is one thing, going to hear it ________ live is another.
The old castle requires ________ after ________ by the storm.
She has already tried her best. Please don’t be too ________ about her job. After all, she is only 21 and ________ from college.
His eyes ________ on the PPT, Lee listened to the teacher ________.
-- Tom says he is too tired to go on. -- He can’t. He ________ for an hour.