—John, look at the time. _____ you play the piano at such a late hour?—Oh, sorry.
_____, the great mother, in order to save her sick child, kept waiting for four hours in the heavy snow.
Was it in 2002 __________ he was still at middle school __________ the boy became expert at computer?
You can’t imagine what difficulty we had home in the snowstorm.
—How many times have you been to China? —In fact, it is the first time I __________ here.
Knowing the result of the exam, he went home and lay in bed,.