I won’t tell the student the answer to the math problem until he ________ on it for more than an hour.
________ we had read your letter _____the true state of affairs.
Books of this kind well.
—Do you think I should go to the seaside for a rest?—____________ You have been busy for such a long time.
---What do you think of your new English teacher?--- She was well prepared for her first lesson and left us a good________.
Being afraid of falling behind the times, he has always been keeping himself ___ of the latest development of technology. A. instructed B. intended C. informed D demanded