I had been puzzled over the problem for over an hour without any result, all at once a solution flashed across my mind.
The two friends had a quarrel about money, but shortly __________ they shook hands and made up.
Thinking that her daughter was doing homework, the mother left the room, __________.
Fully __________ in looking after three children at home, she no longer has time to enjoy various activities in the club.
No matter how the teacher tried to read it, the sentence didn't __________ to me.
If we applied the special method to the Internet __________ people benefit a lot in daily life, it would be better.