Alone in a deserted house, he was so busy with his research work that he felt ___but lonely.
—Call me at 5: 30 tomorrow morning. —Why that early? I _____ then.
_______ Japan’s nuclear crisis (核危机) will be solved in 2011 is not known yet.
A quarrel________, which made him________his family.
Order came that all the army supply ______ to the front before daybreak.
________, I'm glad you made that mistake, for it will serve as a warning to you.