He is very old,____ he still works very hard.
We tried our best to __________ his doubts and let him tell the truth.
Unfortunately __________ her, her parents died early. However, she is fortunate __________ having a goodhusband.
Which do you enjoy __________ your weekend, fishing or watching TV?
According to a recent U. S. survey, children spent up to 25 hours a week __________ TV.
—Why didn't you give a hand to the boy?—I __________ but he __________ to his feet before I tried to.